added fix for schema inheritance
added fix for schema inheritance

jails/lithium,m4rcsch/lithium-core-library,datachand/lithium,muyehub/lithium,m4rcsch/lithium-core-library,davidpersson/lithium,pixelcog/lithium,mehlah/lithium,graphis/lithium,jails/lithium,graphis/lithium,SensCritique/lithium,davidpersson/lithium,pixelcog/lithium,UnionOfRAD/lithium,wbeater/lithium,whowgames/lithium,whowgames/lithium,muyehub/lithium,SensCritique/lithium,datachand/lithium,UnionOfRAD/lithium,wbeater/lithium,mehlah/lithium