Cannot edit new text

Binary package hint: salasaga

On alpha 6, adding a new text and then trying to edit it causes a crash:

Program received signal SIGSEGV, Segmentation fault.
0x00007ffff3d61c80 in g_str_hash () from /lib/libglib-2.0.so.0
(gdb) bt
#0 0x00007ffff3d61c80 in g_str_hash () from /lib/libglib-2.0.so.0
#1 0x00007ffff3d30d7d in g_hash_table_lookup () from /lib/libglib-2.0.so.0
#2 0x00007ffff6837e02 in gtk_text_buffer_apply_tag_by_name () from /usr/lib/libgtk-x11-2.0.so.0
#3 0x00000000004166af in text_layer_dialog_insert_text_after (text_buffer=0xda9010, cursor_location=0x7fffffffbcc0, new_text=<value optimized out>,
    num_chars=<value optimized out>, text_widgets=<value optimized out>) at callbacks/text_layer_dialog_insert_text_signal_triggered.c:139
#4 0x00007ffff3fd85ae in g_closure_invoke () from /usr/lib/libgobject-2.0.so.0
#5 0x00007ffff3fedf70 in ?? () from /usr/lib/libgobject-2.0.so.0
#6 0x00007ffff3feed39 in g_signal_emit_valist () from /usr/lib/libgobject-2.0.so.0
#7 0x00007ffff3fef283 in g_signal_emit () from /usr/lib/libgobject-2.0.so.0
#8 0x00007ffff6838f60 in gtk_text_buffer_insert_interactive () from /usr/lib/libgtk-x11-2.0.so.0
#9 0x00007ffff683ae8f in gtk_text_buffer_insert_interactive_at_cursor () from /usr/lib/libgtk-x11-2.0.so.0
#10 0x00007ffff686098c in ?? () from /usr/lib/libgtk-x11-2.0.so.0
#11 0x00007ffff3fd85ae in g_closure_invoke () from /usr/lib/libgobject-2.0.so.0
#12 0x00007ffff3fed983 in ?? () from /usr/lib/libgobject-2.0.so.0
#13 0x00007ffff3feed39 in g_signal_emit_valist () from /usr/lib/libgobject-2.0.so.0
#14 0x00007ffff3fef0a4 in g_signal_emit_by_name () from /usr/lib/libgobject-2.0.so.0
#15 0x00007ffff3fd85ae in g_closure_invoke () from /usr/lib/libgobject-2.0.so.0
#16 0x00007ffff3fed983 in ?? () from /usr/lib/libgobject-2.0.so.0
#17 0x00007ffff3feed39 in g_signal_emit_valist () from /usr/lib/libgobject-2.0.so.0
#18 0x00007ffff3fef283 in g_signal_emit () from /usr/lib/libgobject-2.0.so.0
#19 0x00007ffff3fd85ae in g_closure_invoke () from /usr/lib/libgobject-2.0.so.0
#20 0x00007ffff3fed983 in ?? () from /usr/lib/libgobject-2.0.so.0
#21 0x00007ffff3feed39 in g_signal_emit_valist () from /usr/lib/libgobject-2.0.so.0
---Type <return> to continue, or q <return> to quit---
#22 0x00007ffff3fef0a4 in g_signal_emit_by_name () from /usr/lib/libgobject-2.0.so.0
#23 0x00007ffff678c4ba in ?? () from /usr/lib/libgtk-x11-2.0.so.0
#24 0x00007ffff678cc2f in ?? () from /usr/lib/libgtk-x11-2.0.so.0
#25 0x00007ffff68638a2 in ?? () from /usr/lib/libgtk-x11-2.0.so.0
#26 0x00007ffff67aa728 in ?? () from /usr/lib/libgtk-x11-2.0.so.0
#27 0x00007ffff3fd84f9 in g_closure_invoke () from /usr/lib/libgobject-2.0.so.0
#28 0x00007ffff3fed64d in ?? () from /usr/lib/libgobject-2.0.so.0
#29 0x00007ffff3feebcc in g_signal_emit_valist () from /usr/lib/libgobject-2.0.so.0
#30 0x00007ffff3fef283 in g_signal_emit () from /usr/lib/libgobject-2.0.so.0
#31 0x00007ffff68b172f in ?? () from /usr/lib/libgtk-x11-2.0.so.0
#32 0x00007ffff68c41cb in gtk_window_propagate_key_event () from /usr/lib/libgtk-x11-2.0.so.0
#33 0x00007ffff68c71cb in ?? () from /usr/lib/libgtk-x11-2.0.so.0
#34 0x00007ffff67aa728 in ?? () from /usr/lib/libgtk-x11-2.0.so.0
#35 0x00007ffff3fd85ae in g_closure_invoke () from /usr/lib/libgobject-2.0.so.0
#36 0x00007ffff3fed64d in ?? () from /usr/lib/libgobject-2.0.so.0
#37 0x00007ffff3feebcc in g_signal_emit_valist () from /usr/lib/libgobject-2.0.so.0
#38 0x00007ffff3fef283 in g_signal_emit () from /usr/lib/libgobject-2.0.so.0
#39 0x00007ffff68b172f in ?? () from /usr/lib/libgtk-x11-2.0.so.0
#40 0x00007ffff67a2da4 in gtk_propagate_event () from /usr/lib/libgtk-x11-2.0.so.0
#41 0x00007ffff67a3ca3 in gtk_main_do_event () from /usr/lib/libgtk-x11-2.0.so.0
#42 0x00007ffff61f6cdc in ?? () from /usr/lib/libgdk-x11-2.0.so.0
#43 0x00007ffff3d3fbbe in g_main_context_dispatch () from /lib/libglib-2.0.so.0
#44 0x00007ffff3d43588 in ?? () from /lib/libglib-2.0.so.0
---Type <return> to continue, or q <return> to quit---
#45 0x00007ffff3d439e5 in g_main_loop_run () from /lib/libglib-2.0.so.0
#46 0x00007ffff6728c95 in gtk_dialog_run () from /usr/lib/libgtk-x11-2.0.so.0
#47 0x0000000000423c2d in display_dialog_text (tmp_layer=0xd87970, dialog_title=<value optimized out>) at dialog/display_dialog_text.c:677
#48 0x000000000042f11c in layer_edit () at layer/layer_edit.c:159
#49 0x000000000044d6cd in working_area_button_press_event (widget=<value optimized out>, event=0xe42920, data=<value optimized out>)
    at working_area/working_area_button_press_event.c:103
#50 0x00007ffff67aa728 in ?? () from /usr/lib/libgtk-x11-2.0.so.0
#51 0x00007ffff3fd85ae in g_closure_invoke () from /usr/lib/libgobject-2.0.so.0
#52 0x00007ffff3fed983 in ?? () from /usr/lib/libgobject-2.0.so.0
#53 0x00007ffff3feebcc in g_signal_emit_valist () from /usr/lib/libgobject-2.0.so.0
#54 0x00007ffff3fef283 in g_signal_emit () from /usr/lib/libgobject-2.0.so.0
#55 0x00007ffff68b172f in ?? () from /usr/lib/libgtk-x11-2.0.so.0
#56 0x00007ffff67a2cd3 in gtk_propagate_event () from /usr/lib/libgtk-x11-2.0.so.0
#57 0x00007ffff67a3ca3 in gtk_main_do_event () from /usr/lib/libgtk-x11-2.0.so.0
#58 0x00007ffff61f6cdc in ?? () from /usr/lib/libgdk-x11-2.0.so.0
#59 0x00007ffff3d3fbbe in g_main_context_dispatch () from /lib/libglib-2.0.so.0
#60 0x00007ffff3d43588 in ?? () from /lib/libglib-2.0.so.0
#61 0x00007ffff3d439e5 in g_main_loop_run () from /lib/libglib-2.0.so.0
#62 0x00007ffff67a4177 in gtk_main () from /usr/lib/libgtk-x11-2.0.so.0
#63 0x000000000044fdee in main (argc=1, argv=0x7fffffffe3b8) at ../salasaga.c:607
(gdb)

ProblemType: Bug
Architecture: amd64
Date: Fri Dec 4 12:09:54 2009
DistroRelease: Ubuntu 9.10
InstallationMedia: Ubuntu 9.10 "Karmic Koala" - Release Candidate amd64 (20091020.3)
NonfreeKernelModules: nvidia
Package: salasaga (not installed)
ProcEnviron:
 LANG=en_CA.UTF-8
 SHELL=/bin/bash
ProcVersionSignature: Ubuntu 2.6.31-15.50-generic
SourcePackage: salasaga
Uname: Linux 2.6.31-15-generic x86_64