Index: backend/ipp.c
===================================================================
--- backend/ipp.c	(revision 10448)
+++ backend/ipp.c	(working copy)
@@ -1328,7 +1328,8 @@
 			   "cups-ipp-missing-validate-job");
       break;
     }
-    else if (ipp_status < IPP_REDIRECTION_OTHER_SITE)
+    else if (ipp_status < IPP_REDIRECTION_OTHER_SITE ||
+             ipp_status == IPP_BAD_REQUEST)
       break;
   }
 
