Apply suggestions from PR review

Co-authored-by: Ralf Handl <[email protected]>

Author: mikekistler

src/schemas/validation/meta.yaml

@@ -30,7 +30,7 @@ $defs:
           type: string
         type: object
       defaultMapping:
-        type: object
+        type: string
       propertyName:
         type: string
     required:

tests/schema/pass/mega.yaml

@@ -55,9 +55,7 @@ components:
                   propertyName: type
                   mapping:
                     foo: Foo
-                  defaultMapping:
-                    not:
-                      required: ['type']
+                  defaultMapping: Bar
                   x-extension: true
                 anyOf:
                 - $ref: "#/components/schemas/Foo"