Abort early if owner isn't found in Module\RemoteFollow
Abort early if owner isn't found in Module\RemoteFollow

- Address https://github.com/friendica/friendica/issues/10473#issuecomment-899099987

tobiasd/friendica,friendica/friendica,friendica/friendica,friendica/friendica,annando/friendica,annando/friendica,annando/friendica,tobiasd/friendica,tobiasd/friendica,annando/friendica,friendica/friendica,friendica/friendica,tobiasd/friendica,annando/friendica,tobiasd/friendica