--- rpm-4.4.6/lib/psm.c.pix	2006-04-03 01:12:33.000000000 +0200
+++ rpm-4.4.6/lib/psm.c	2007-01-19 16:31:49.000000000 +0100
@@ -1050,6 +1050,9 @@
 exit:
     progArgv = hfd(progArgv, ptt);
     script = hfd(script, stt);
+    if (rc != RPMRC_OK && psm->progTag != RPMTAG_PREINPROG) {
+        return RPMRC_OK;
+    }
     return rc;
 }