[HUBZERO][#7448][PLG_USER_MIDDLEWARE] always set user_id, even if new record
[HUBZERO][#7448][PLG_USER_MIDDLEWARE] always set user_id, even if new record

zooley/hubzero-cms,zooley/hubzero-cms,anthonyfuentes/hubzero-cms,zweidner/hubzero-cms,zooley/hubzero-cms,zweidner/hubzero-cms,anthonyfuentes/hubzero-cms,zweidner/hubzero-cms,anthonyfuentes/hubzero-cms,zweidner/hubzero-cms,anthonyfuentes/hubzero-cms,zooley/hubzero-cms