The reason is probably because the patch is not a proper one but a workaround for a thunderbird bug, see the patch comment
"/* XXX: Work around https://launchpad.net/bugs/757976"; -- You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is subscribed to nautilus-sendto in Ubuntu. https://bugs.launchpad.net/bugs/757976 Title: Thunderbird attachment name changes cause send error To manage notifications about this bug go to: https://bugs.launchpad.net/nautilus-sendto/+bug/757976/+subscriptions -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs
