precreate maps in schema

types/reflection.go

@@ -79,6 +79,8 @@ func (s *Schemas) newSchemaFromType(version *APIVersion, t reflect.Type, typeNam
 		CodeName:          t.Name(),
 		PkgName:           t.PkgPath(),
 		ResourceFields:    map[string]Field{},
+		ResourceActions:   map[string]Action{},
+		CollectionActions: map[string]Action{},
 	}
 
 	if err := s.readFields(schema, t); err != nil {