[HUBZERO][#5782][COM_COURSES] Copy child asset group only once.
[HUBZERO][#5782][COM_COURSES] Copy child asset group only once.

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