Merge pull request #26459 from edx/aehsan/van-351/field_added_in_validate_decisions_for_authn

field added in validate decisions for authn

openedx/core/djangoapps/user_authn/views/register.py

@@ -758,4 +758,10 @@ class RegistrationValidationView(APIView):
                 validation_decisions.update({
                     form_field_key: handler(self, request)
                 })
+
+        field_name = request.data.get('fieldName')  # adding field name for authn MFE use case
+        if field_name:
+            validation_decisions.update({
+                'fieldName': field_name
+            })
         return Response({"validation_decisions": validation_decisions})