Yup, #4 seems to have fixed it. That narrows the scope of the bug considerably: now I'm reduced to complaining that it crashed, rather than gracefully handling a corrupted database.
** Summary changed: - gnome tweak tool kills session when changing fonts + gnome tweak tool and control center should gracefully handle corrupt dconf database -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1781832 Title: gnome tweak tool and control center should gracefully handle corrupt dconf database To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-control-center/+bug/1781832/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs