Index: JspTemplateRenderer.java
===================================================================
--- JspTemplateRenderer.java	(revision 32408)
+++ JspTemplateRenderer.java	(working copy)
@@ -73,6 +73,8 @@
             rd.forward(request, response);
         }
         catch (Exception e) {
+            // remove the attribute just set, because a custom magnolia managed error-page may have been configured in web.xml
+            request.removeAttribute(DontDispatchOnForwardAttributeVoter.DONT_DISPATCH_ON_FORWARD_ATTRIBUTE);
             throw new RenderException("Can't render template " + templatePath, e);
         }
     }