Please tag nautilus-2.28.1-2.fc12 for dist-f12, this bugfix release contains workaround for a crash in sidebar information panel. Reported by users, it crashes during file deletion, though no one is able to reproduce the issue again and test the fix. However, plenty of duplicates were opened lately by abrt from different people. The patch is so simple so that in worst case user would only get information for incorrect selected item.

Related bugs:
https://bugzilla.redhat.com/show_bug.cgi?id=531826
https://bugzilla.gnome.org/show_bug.cgi?id=590591