Fix non-null union field implements nullable union interface field - #4467

Fix non-null union field implements nullable union interface field#4467

tonyghita wants to merge 5 commits into

graphql-java:mastergraphql-java/graphql-java:masterfrom

tonyghita:fix-interface-union-nullabilitytonyghita/graphql-java:fix-interface-union-nullabilityCopy head branch name to clipboard