Please see Fedora bug #579087 <https://bugzilla.redhat.com/show_bug.cgi?id=579087>, w/ patch against Thunar 1.0.1. Although Thunar is migrating to gio obsoleting these thunar-vfs stuff, I hope this could get fixed in the 1.0.x branch. There were some harsh words there in the Fedora bug report and I apologize for that... Keep up w/ the good work folks :)
Oops, dup dup dup. *** This bug has been marked as a duplicate of bug 3532 ***