Keyboard sometimes not showing up on first boot after flashing on Nexus 10

With today's image, I am not presented with a keyboard when trying to enter my wifi password.

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cat /system/quantal-ubuntu_stamp
HARDWARE=manta
JENKINS_BUILD=37
UBUNTU=manhattan-quantal-armhf-20130319-1
ubuntu/platform-api=:43
ubuntu/hybris=:123

Android repo head list:
abi/cpp : eb789ea : Fix for issue 28721.
android : 76c770f : default.xml: changing default -j from 4 to 1
bionic : a45cbac : Bionic/libm: Fix the mismatch ENTRY/END in e_pow.S
bootable/diskinstaller : 60d078a : Merge "Fix $(INSTALLED_ANDROID_IMAGE_DATA_TARGET) dependency"
bootable/recovery : c055b99 : Adding some Ubuntu specific customizations to recovery
build : 9a969c9 : envsetup.sh: disabling roomservice call from breakfast
development : 32d202f : Some changes added to compile and run with Java 6 and Java 7.
device/asus/grouper : 5362a5f : init.grouper.rc: changing default permission for sys/brightness
device/common : 201208b : libbt: Add support for board-specific configuration
device/generic/armv7-a : 700aab1 : disable lockscreen by default
device/generic/armv7-a-neon : 8a52ffa : disable lockscreen by default
device/generic/common : 11c092a : Add support for per device bluetooth configuration.
device/generic/goldfish : f0397b6 : copy files from development/data/etc to device/generic/goldfish/data/etc
device/generic/mips : 764fe78 : change mini_mips ARCH_VARIANT to mips32-fp instead of default mips32r2-fp
device/generic/x86 : ae8e76c : disable lockscreen by default
device/lge/mako : b8682ab : thermald-mako: don't control lcd brightness by default
device/sample : 7e69d92 : [sample] change apns-full-conf.xml
device/samsung/maguro : d0e55a3 : Update dependencies for CM-10.1
device/samsung/manta : 0b10e4a : init.manta.rc: changing default permission for sys/brightness
device/samsung/tuna : c596216 : init.tuna.rc: changing default permission for sys/brightness
device/ti/panda : 232b56a : remove bluetooth quick switch resource from overlay config file
external/aac : b2511c6 : Merge branch 'jb-mr1-release' of https://android.googlesource.com/platform/external/aac into mr1-staging
external/bouncycastle : 779b3b1 : bouncycastle: disabling java libs which requires target support
external/bsdiff : 23e322a : Merge "host modules don't need LOCAL_MODULE_TAGS"
external/busybox : 04f05b8 : Fix building under 4.2
external/bzip2 : 8a81a41 : Retire LOCAL_NDK_VERSION.
external/e2fsprogs : 4ecbd86 : Fix dev time initialization for cache age caculation
external/expat : bb9f3f7 : am 7174719f: Merge "Upgrade to expat 2.1.0."
external/flac : 686d6ff : Compile FLAC encoder in libFLAC
external/freetype : bad440f : Revert "freetype: Add Infinality patches"
external/gcc-demangle : d6f7018 : Build libgccdemangle for the host too.
external/genext2fs : 2e672fa : Move mkuserimg.sh to make_ext4fs
external/giflib : b027dc0 : Remove obsolete ThirdPartyProject.prop file.
external/gtest : 344e5f3 : Use $EXTERNAL_STORAGE instead of /sdcard.
external/harfbuzz : 6842c62 : Fix to make space width consistent in bidi
external/htop : e1a8535 : Fix the build on CM
external/icu4c : 12ffd01 : Merge branch 'jb-mr1-release' of https://android.googlesource.com/platform/external/icu4c into mr1-staging
external/jhead : 0feb6b7 : Remove exif jni
external/jpeg : ccfc460 : Merge branch 'jb-mr1-release' of https://android.googlesource.com/platform/external/jpeg into mr1-staging
external/kernel-headers : 4af6a3c : merge in jb-mr1-release history after reset to jb-mr1-dev
external/liblzf : 6946aa5 : Add NOTICE file for BSD license
external/libncurses : 565e8f2 : Compiliation fixes
external/libnl-headers : 6ccf734 : Move libnl headers to their own project
external/libogg : ec0b24f : Add make file for libogg library.
external/libpng : 9eec0a5 : Revert "Switch back to LOCAL_CLANG with -std=gnu89."
external/libvpx : b9c4e67 : Merge "[MIPS] VP8 optimizations for MIPS"
external/linux-tools-perf : 48630d7 : am 3043b188: Merge "Fix build for x86_64"
external/mksh : 93bd42c : Track libnativehelper move for PDK.
external/openssl : ba352ab : Remove references to obsolete ThirdPartyProject.prop
external/protobuf : f3e2240 : Disabling build for java libraries
external/qemu : a546c70 : Merge branch 'jb-mr1-release' of https://android.googlesource.com/platform/external/qemu into mr1-staging
external/qemu-pc-bios : 20349da : Merge "Change the MP table to support >16 IRQ number"
external/safe-iop : aa0725f : Remove obsolete ThirdPartyProject.prop file.
external/skia : cb5701e : Several skia tunings for JB_2.5
external/sonivox : 4a21314 : am 274d0571: Merge "Added support for parsing XMF versions 1.00 and 1.01 headers"
external/speex : fb7db58 : Remove obsolete ThirdPartyProject.prop file.
external/sqlite : a683f4e : Merge branch 'jb-mr1-release' of https://android.googlesource.com/platform/external/sqlite into mr1-staging
external/stlport : 30865cb : Revert "Unbundle libstlport with NDK r4."
external/strace : 7d2d23f : Merge "[MIPS] Add MIPS Support"
external/tinyalsa : ff2e542 : pcm: fix default capture start threshold
external/tremolo : 3eec179 : Merge "hardening: eliminate text relocations"
external/webp : 5a50414 : DO NOT MERGE Sync libwebp ver 0.2.0
external/webrtc : cf20dbf : Merge "Add the necessary macros to build webrtc for MIPS."
external/wpa_supplicant_6 : 0ff75d6 : Merge branch 'jb-mr1-release' of https://android.googlesource.com/platform/external/wpa_supplicant_6 into mr1-staging
external/wpa_supplicant_8 : ee1a2bc : Fix regression in LEAP
external/wpa_supplicant_8_ti : 161f26d : Add WFD dev info in device found event
external/yaffs2 : f58e662 : Remove superfluous eng tag on host binary. This fixes the build warning spam.
external/zlib : b481bdc : Remove usage of LOCAL_NDK_VERSION etc
frameworks/av : 5269ee2 : Make an exception for MR0_AUDIO_BLOB in loadHwModule_l
frameworks/base : 8fbb50d : [2/3] mediaeditor: Allow custom DOMX source instead of Google DOMX default
frameworks/native : a3986b9 : sensorservice: adding sleep to avoid race condition during start
frameworks/opt/emoji : 0805d75 : Rename (IF_)LOGE(_IF) to (IF_)ALOGE(_IF) DO NOT MERGE
hardware/broadcom/wlan : 7ada57e : Merge branch 'jb-mr1-release' of https://android.googlesource.com/platform/hardware/broadcom/wlan into HEAD
hardware/cm : 08c587e : audio: Update for JB compatibility
hardware/invensense : 33ce91b : MotionApps 5.1.1 release, with MA 5.1.0 for further merge review.
hardware/libhardware : af11587 : Merge tag 'android-4.2.2_r1' of https://android.googlesource.com/platform/hardware/libhardware into 1.1
hardware/libhardware_legacy : 3967e45 : Setting current stream volume as max by default
hardware/msm7k : e2d92ef : Merge branch 'jb-mr1-release' of https://android.googlesource.com/platform/hardware/msm7k into HEAD
hardware/qcom/audio : 2e6191c : setMasterVolume: return error to allow software mixer
hardware/qcom/audio-caf : 71a433c : Enhance ALSA for USB Dock Audio support
hardware/qcom/bt : ad7eab0 : libbt-vendor: implementation for Qualcomm chipsets
hardware/qcom/camera : b19a908 : Camera: add TARGET_PROVIDES_CAMERA_HAL
hardware/qcom/display : 2d4f8c2 : Fixing signed x unsigned comparison for gcc 4.7
hardware/qcom/display-caf : 679ec6d : gralloc: Add TARGET_USES_QCOM_BSP flag for non-AOSP features
hardware/qcom/gps : 09ce8ac : Split API 50000 support
hardware/qcom/keymaster : 3816bf0 : Initial empty repository
hardware/qcom/media : 333d0e4 : media: allow msm8660 into repo
hardware/qcom/msm8960 : 1527a7f : Initial empty repository
hardware/qcom/power : 53cc747 : qcom_power: add TARGET_PROVIDES_POWERHAL
hardware/qcom/sensors : 07c5bcd : Initial empty repository
hardware/qcom/wlan : 59d7a95 : wpa_supplicant_8_lib: reinstate wpa_driver_set_ap_wps_p2p_ie
hardware/ril : 25abac7 : Remove credential check for rild
hardware/samsung_slsi/exynos5 : 7219980 : merge in jb-mr1-release history after reset to jb-mr1-dev
hardware/ti/omap3 : f3af114 : Fix another misspelling of a symbol name (same exact symbol, different vendor)
hardware/ti/omap4xxx : d5d4715 : Disabling tf_daemon and CameraHal for proper phablet build
hardware/ti/wlan : 6db38e2 : Merge branch 'jb-mr1-release' of https://android.googlesource.com/platform/hardware/ti/wlan into HEAD
hardware/ti/wpan : 1f24d25 : Disabling builds for extras and not needed tools
kernel/asus/grouper : 06b7e9c : Expose virtual PID from child namespace in /proc/PID/status.
kernel/lge/mako : 010b7ed : Expose virtual PID from child namespace in /proc/PID/status.
kernel/samsung/manta : e005e78 : Expose virtual PID from child namespace in /proc/PID/status.
kernel/samsung/tuna : c2deee2 : Expose virtual PID from child namespace in /proc/PID/status.
libnativehelper : 73d3c2e : Make libnativehelper stand-alone.
packages/wallpapers/LivePicker : fd3290c : Merge tag 'android-4.2.2_r1' of https://android.googlesource.com/platform/packages/wallpapers/LivePicker into 1.1
prebuilt : 8cd7b1d : Remove everything that isn't a build tool
prebuilts/clang/darwin-x86/3.1 : 4262334 : Initial empty repository
prebuilts/clang/darwin-x86/3.2 : af856d7 : Initial empty repository
prebuilts/clang/linux-x86/3.1 : e95b4ce : Clang version 3.1.
prebuilts/clang/linux-x86/3.2 : 471afab : Initial empty repository
prebuilts/gcc/darwin-x86/arm/arm-eabi-4.6 : 21b2cba : Commit 64bit darwin hosted arm-eabi toolchain for kernel use.
prebuilts/gcc/darwin-x86/arm/arm-linux-androideabi-4.6 : cd1d69c : Check in 64-bit Darwin prebuilts for objcopy and strip.
prebuilts/gcc/darwin-x86/mips/mipsel-linux-android-4.6 : 837cdd9 : Merge "Update mips toolchain mipsel-linux-android-4.6 (darwin-x86)"
prebuilts/gcc/darwin-x86/x86/i686-linux-android-4.6 : 042d613 : Merge "Update x86 toolchain i686-linux-android-4.6 (darwin-x86)"
prebuilts/gcc/linux-x86/arm/arm-eabi-4.6 : d73a051 : Upgrade to host 64bit arm-eabi toolchain.
prebuilts/gcc/linux-x86/arm/arm-linux-androideabi-4.6 : 1aa5822 : Check in 64-bit Linux prebuilts for objcopy and strip.
prebuilts/gcc/linux-x86/arm/linaro-4.7.2 : a67a0d1 : Importing Linaro Cross Toolchain (GCC 4.7.2)
prebuilts/gcc/linux-x86/host/i686-linux-glibc2.7-4.4.3 : 10191e2 : Point to new location for source files
prebuilts/gcc/linux-x86/host/i686-linux-glibc2.7-4.6 : 9e754ea : Added missing defines and headers
prebuilts/gcc/linux-x86/host/x86_64-linux-glibc2.7-4.6 : 4b88bc4 : Added missing defines and headers (x86_64)
prebuilts/gcc/linux-x86/mips/mipsel-linux-android-4.6 : 90fc0bd : Merge "Update mips toolchain mipsel-linux-android-4.6"
prebuilts/gcc/linux-x86/x86/i686-linux-android-4.6 : b9ebba0 : Merge "Update x86 toolchain i686-linux-android-4.6"
prebuilts/misc : f32b66a : am e63e2c84: Manually update tradefed prebuilt from jb.
prebuilts/ndk : 9e04eb2 : merge in jb-mr1-release history after reset to jb-mr1-dev
prebuilts/qemu-kernel : f1b132a : arm: update kernel for iptables
prebuilts/sdk : de5b622 : merge in jb-mr1.1-release history after reset to jb-mr1.1-dev
prebuilts/tools : bbf7c25 : Merge "Add EasyMock 3.1, Objenesis 1.2 and cglib 2.2.3"
system/bluetooth : 098826f : Merge branch 'jb-mr1-release' of https://android.googlesource.com/platform/system/bluetooth into mr1
system/core : 1fa9dcf : Updating init.rc to include our needed services
system/extras : b15858a : Porting Android's log path to /dev/alog to avoid conflicts with syslogd
system/media : 139237f : Merge tag 'android-4.2.2_r1' of https://android.googlesource.com/platform/system/media into 1.1
system/security : ccba88f : Fixing narrowing errors
system/su : 52c188c : su: Setting root access to "ADB only" doesn't work
system/vold : 3ffe02b : Merge tag 'android-4.2.2_r1' of https://android.googlesource.com/platform/system/vold into 1.1
tools/build : 7eff274 : Merge "Remove the default java tasks and fix packaging java res"
ubuntu/assets : 3651fe6 : Renaming ubuntu_stamp to quantal-ubuntu_stamp
ubuntu/uchroot : ee46af2 : Add logic to uchroot to poweroff the phone automatically if the container dies.
vendor/cm : d1db8e5 : Fixing typo...

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$ adb shell getprop ro.cm.device
manta