--- rpm-4.8.0/lib/rpmchecksig.c.orig	2011-08-14 18:01:44.543660008 +0200
+++ rpm-4.8.0/lib/rpmchecksig.c	2011-08-14 18:07:07.198765842 +0200
@@ -333,6 +333,11 @@
 		       rpm);
 		    /* Identical signature is not an error */
 		    res = 0;
+
+                    /* Clean up intermediate target */
+                    xx = unlink(sigtarget);
+                    sigtarget = _free(sigtarget);
+                    continue;
 		}
 		goto exit;
 	    }