non-locally controlled server owned pawns' async tasks will never complete

[petegilb]

was talking with reznok and he encountered this bug. It is apparent in his game where he has turrets that fire a shoot ability. Turrets are owned by the server and don't have a client to transfer data between. Async tasks should probably automatically complete when executed on a "Server Only" ASC but let's try to find an elegant solution to this that will work with most tasks.