[STEMEDHUB][#530][PLG_GROUPS_CITATIONS] Forgot the 'none' option
[STEMEDHUB][#530][PLG_GROUPS_CITATIONS] Forgot the 'none' option

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