Adding a child to a parent that is already a parent of it is a NOOP
Adding a child to a parent that is already a parent of it is a NOOP

RealityFactory/CEGUI,cbeck88/cegui-mirror,RealityFactory/CEGUI,arkana-fts/cegui,cbeck88/cegui-mirror,cbeck88/cegui-mirror,arkana-fts/cegui,arkana-fts/cegui,arkana-fts/cegui,cbeck88/cegui-mirror,RealityFactory/CEGUI,RealityFactory/CEGUI,cbeck88/cegui-mirror,RealityFactory/CEGUI,arkana-fts/cegui