EntityCollections.computeAddedRemovedEntityRefsFromNewEntitiesOldRefs(addedGroups, removedGroups, groups, m_groups);
EntityCollections.computeAddedRemovedEntityRefsFromNewEntitiesOldRefs(addedGroups, removedGroups, groups, m_groups);
EntityCollections.computeAddedRemovedEntityRefsFromNewEntitiesOldRefs(addedGroups, removedGroups, groups, m_groups);
EntityCollections.computeAddedRemovedEntityRefsFromNewEntitiesOldRefs(addedGroups, removedGroups, groups, m_groups);