McdDispatcher: if there are no possible handlers for a request, assume the preferred handler is OK
McdDispatcher: if there are no possible handlers for a request, assume the preferred handler is OK

This bypasses logic elsewhere in MC that terminates dispatching early if
there are no suitable handlers at all.

freedesktop-unofficial-mirror/telepathy__telepathy-mission-control,freedesktop-unofficial-mirror/telepathy__telepathy-mission-control,freedesktop-unofficial-mirror/telepathy__telepathy-mission-control,freedesktop-unofficial-mirror/telepathy__telepathy-mission-control