When vcl_miss() take error action, remember to discard backend request.

Ticket: 139


git-svn-id: http://www.varnish-cache.org/svn/trunk/varnish-cache@1807 d4fa192b-c00b-0410-8231-f00ffab90ce4

bin/varnishd/cache_center.c

@@ -567,6 +567,8 @@ cnt_miss(struct sess *sp)
 		HSH_Unbusy(sp->obj);
 		HSH_Deref(sp->obj);
 		sp->obj = NULL;
+		vbe_free_bereq(sp->bereq);
+		sp->bereq = NULL;
 		sp->step = STP_ERROR;
 		return (0);
 	}