I updated to the packages from xenial-proposed and did not experience a crash using the faketime test case from the bug description.
Log started: 2017-04-05 08:20:24 (Reading database ... ^M(Reading database ... 5%^M(Reading database ... 10%^M(Reading database ... 15%^M(Reading database ... 20%^M(Reading database ... 25%^M(Reading database ... 30%^M(Reading database ... 35%^M(Reading database ... 40%^M(Reading database ... 45%^M(Reading database ... 50%^M(Reading database ... 55%^M(Reading database ... 60%^M(Reading database ... 65%^M(Reading database ... 70%^M(Reading database ... 75%^M(Reading database ... 80%^M(Reading database ... 85%^M(Reading database ... 90%^M(Reading database ... 95%^M(Reading database ... 100%^M(Reading database ... 212826 files and directories currently installed.)^M Preparing to unpack .../update-notifier_3.168.4_amd64.deb ...^M Unpacking update-notifier (3.168.4) over (3.168.1) ...^M Preparing to unpack .../update-manager_1%3a16.04.6_all.deb ...^M Unpacking update-manager (1:16.04.6) over (1:16.04.3) ...^M Preparing to unpack .../update-manager-core_1%3a16.04.6_all.deb ...^M Unpacking update-manager-core (1:16.04.6) over (1:16.04.3) ...^M Preparing to unpack .../python3-update-manager_1%3a16.04.6_all.deb ...^M Unpacking python3-update-manager (1:16.04.6) over (1:16.04.3) ...^M Preparing to unpack .../update-notifier-common_3.168.4_all.deb ...^M Unpacking update-notifier-common (3.168.4) over (3.168.1) ...^M Processing triggers for hicolor-icon-theme (0.15-0ubuntu1) ...^M Processing triggers for libglib2.0-0:amd64 (2.48.1-1~ubuntu16.04.1) ...^M Processing triggers for gconf2 (3.2.6-3ubuntu6) ...^M Processing triggers for bamfdaemon (0.5.3~bzr0+16.04.20160824-0ubuntu1) ...^M Rebuilding /usr/share/applications/bamf-2.index...^M Processing triggers for gnome-menus (3.13.3-6ubuntu3.1) ...^M Processing triggers for desktop-file-utils (0.22-1ubuntu5) ...^M Processing triggers for mime-support (3.59ubuntu1) ...^M Processing triggers for man-db (2.7.5-1) ...^M Setting up python3-update-manager (1:16.04.6) ...^M Setting up update-manager-core (1:16.04.6) ...^M Setting up update-notifier-common (3.168.4) ...^M Setting up update-manager (1:16.04.6) ...^M Setting up update-notifier (3.168.4) ...^M Log ended: 2017-04-05 08:20:27
Setting to v-done for xenial.
I updated to the packages from xenial-proposed and did not experience a crash using the faketime test case from the bug description.
Log started: 2017-04-05 08:20:24 notifier_ 3.168.4_ amd64.deb ...^M manager_ 1%3a16. 04.6_all. deb ...^M manager- core_1% 3a16.04. 6_all.deb ...^M update- manager_ 1%3a16. 04.6_all. deb ...^M update- manager (1:16.04.6) over (1:16.04.3) ...^M notifier- common_ 3.168.4_ all.deb ...^M notifier- common (3.168.4) over (3.168.1) ...^M 1~ubuntu16. 04.1) ...^M bzr0+16. 04.20160824- 0ubuntu1) ...^M applications/ bamf-2. index.. .^M update- manager (1:16.04.6) ...^M notifier- common (3.168.4) ...^M
(Reading database ... ^M(Reading database ... 5%^M(Reading database ... 10%^M(Reading database ... 15%^M(Reading database ... 20%^M(Reading database ... 25%^M(Reading database ... 30%^M(Reading database ... 35%^M(Reading database ... 40%^M(Reading database ... 45%^M(Reading database ... 50%^M(Reading database ... 55%^M(Reading database ... 60%^M(Reading database ... 65%^M(Reading database ... 70%^M(Reading database ... 75%^M(Reading database ... 80%^M(Reading database ... 85%^M(Reading database ... 90%^M(Reading database ... 95%^M(Reading database ... 100%^M(Reading database ... 212826 files and directories currently installed.)^M
Preparing to unpack .../update-
Unpacking update-notifier (3.168.4) over (3.168.1) ...^M
Preparing to unpack .../update-
Unpacking update-manager (1:16.04.6) over (1:16.04.3) ...^M
Preparing to unpack .../update-
Unpacking update-manager-core (1:16.04.6) over (1:16.04.3) ...^M
Preparing to unpack .../python3-
Unpacking python3-
Preparing to unpack .../update-
Unpacking update-
Processing triggers for hicolor-icon-theme (0.15-0ubuntu1) ...^M
Processing triggers for libglib2.0-0:amd64 (2.48.1-
Processing triggers for gconf2 (3.2.6-3ubuntu6) ...^M
Processing triggers for bamfdaemon (0.5.3~
Rebuilding /usr/share/
Processing triggers for gnome-menus (3.13.3-6ubuntu3.1) ...^M
Processing triggers for desktop-file-utils (0.22-1ubuntu5) ...^M
Processing triggers for mime-support (3.59ubuntu1) ...^M
Processing triggers for man-db (2.7.5-1) ...^M
Setting up python3-
Setting up update-manager-core (1:16.04.6) ...^M
Setting up update-
Setting up update-manager (1:16.04.6) ...^M
Setting up update-notifier (3.168.4) ...^M
Log ended: 2017-04-05 08:20:27
Setting to v-done for xenial.