--- a/maildrop.c	Fri Apr 11 10:01:48 2014 +0500
+++ b/maildrop.c	Fri Apr 11 10:06:47 2014 +0500
@@ -328,6 +328,7 @@
 		    "maildrop_list");
 	}
 	
+	res.uidl = *uidl;
 	/* terminal sentinel: hash = "" and sz = 0 */
 	if (*uidl)
 		strlcpy(res.u.hash, "", sizeof(res.u.hash));