Error when generating invite codes for a confirmed remote cluster (#28337)

api/v4/source/remoteclusters.yaml

@@ -115,6 +115,8 @@
                     description: |
                       The password generated by the server if none was
                       sent on the create request
+        "400":
+          $ref: "#/components/responses/BadRequest"
         "401":
           $ref: "#/components/responses/Unauthorized"
         "403":