FTBFS in bionic

# gnome-disk-utility 3.26.2-0ubuntu1 (Proposed)

Bionic gnome-disk-utility is expecting a Build-Depends version for libudisks2-dev higher than what Ubuntu currently has in the archive.

#amd64/buildlog
https://launchpadlibrarian.net/348142968/buildlog_ubuntu-bionic-amd64.gnome-disk-utility_3.26.2-0ubuntu1_BUILDING.txt.gz
......
+------------------------------------------------------------------------------+
| Install gnome-disk-utility build dependencies (apt-based resolver) |
+------------------------------------------------------------------------------+

Installing build dependencies
Reading package lists...
Building dependency tree...
Reading state information...
Some packages could not be installed. This may mean that you have
requested an impossible situation or if you are using the unstable
distribution that some required packages have not yet been created
or been moved out of Incoming.
The following information may help to resolve the situation:

The following packages have unmet dependencies:
 sbuild-build-depends-gnome-disk-utility-dummy : Depends: libudisks2-dev (>= 2.7.2) but it is not going to be installed
E: Unable to correct problems, you have held broken packages.
apt-get failed.
Package installation failed
......

-------------------------------------
$ rmadison libudisks2-dev -u ubuntu
 libudisks2-dev | 2.1.3-1 | trusty | amd64, arm64, armhf, i386, powerpc, ppc64el
 libudisks2-dev | 2.1.3-1ubuntu0.1 | trusty-updates | amd64, arm64, armhf, i386, powerpc, ppc64el
 libudisks2-dev | 2.1.7-1ubuntu1 | xenial | amd64, arm64, armhf, i386, powerpc, ppc64el, s390x
 libudisks2-dev | 2.1.8-1ubuntu1 | zesty | amd64, arm64, armhf, i386, ppc64el, s390x
 libudisks2-dev | 2.6.5-2ubuntu2 | artful | amd64, arm64, armhf, i386, ppc64el, s390x
 libudisks2-dev | 2.6.5-2ubuntu2 | bionic | amd64, arm64, armhf, i386, ppc64el, s390x

-------------------------------------

$ rmadison libudisks2-dev -u debian
libudisks2-dev | 2.1.3-5 | oldstable | amd64, arm64, armel, armhf, i386, mips, mipsel, powerpc, ppc64el, s390x
libudisks2-dev | 2.1.8-1 | stable | amd64, arm64, armel, armhf, i386, mips, mips64el, mipsel, ppc64el, s390x
libudisks2-dev | 2.7.4-1 | testing | amd64, arm64, armel, armhf, i386, mips, mips64el, mipsel, ppc64el, s390x
libudisks2-dev | 2.7.4-1 | unstable | amd64, arm64, armel, armhf, i386, mips, mips64el, mipsel, powerpc, ppc64el, s390x

-------------------------------------

d/control
--
Build-Depends: appstream-util,
               debhelper (>= 10.3~),
               dh-translations,
               docbook-xsl,
               libcanberra-gtk3-dev (>= 0.1),
               libdvdread-dev (>= 4.2.0),
               libglib2.0-dev (>= 2.31.0),
               libgtk-3-dev (>= 3.16.0),
               liblzma-dev (>= 5.0.5),
               libnotify-dev (>= 0.7),
               libpwquality-dev (>= 1.0.0),
               libsecret-1-dev (>= 0.7),
               libsystemd-dev (>= 209),
              ==> libudisks2-dev (>= 2.7.2),