/usr/bin/gnome-shell:11:g_type_check_instance_is_fundamentally_a:g_object_set_data:free_fetch_user_request:fetch_user_incrementally:on_find_user_by_name_finished

[errors.ubuntu.com bug bridge]

The Ubuntu Error Tracker has been receiving reports about a problem regarding gnome-shell. This problem was most recently seen with package version 44.0-2ubuntu3, the problem page at https://errors.ubuntu.com/problem/64e3f2e18d0341d9671739f096085c0310725018 contains more details, including versions of packages affected, stacktrace or traceback, and individual crash reports.
If you do not have access to the Ubuntu Error Tracker and are a software developer, you can request it at http://forms.canonical.com/reports/.