PISTON-1082: Crossbar validation errors with the same top level key w…

…ill (#6699)

no longer overwrite each other but instead will now merge the keys where
possible

applications/crossbar/src/cb_context.erl

@@ -1101,7 +1101,7 @@ add_validation_error(Property, Code, Message, Context) ->
                                          )
                                        ),
     ErrorsJObj = validation_errors(Context),
-    Context#cb_context{validation_errors=kz_json:merge_jobjs(ErrorJObj, ErrorsJObj)
+    Context#cb_context{validation_errors=kz_json:merge(ErrorJObj, ErrorsJObj)
                       ,resp_status='error'
                       ,resp_error_code=ErrorCode
                       ,resp_data=kz_json:new()