You may want to take a look at bug 58492 which talks about this bug but in the AMD64 distribution. However, it is the same bug. They have found that there is a workaround (do not use GTK+ dialogs) and it is a linking problem, as well-- rebuilding and pushing an update should fix it. Bug 58492 has more detail.
-- Crash when saving a file https://launchpad.net/bugs/58506 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs