Based on Jesper Dangaard Brouer's patch.

Index: libiptc/libiptc.c
===================================================================
--- libiptc/libiptc.c	(revisión: 6644)
+++ libiptc/libiptc.c	(copia de trabajo)
@@ -1543,6 +1543,14 @@
 		c->num_rules--;
 		iptcc_delete_rule(i);
 
+		/* Since iptcc_map_target increments refcounting of
+		 * the target chain used by the fake rule, once we
+		 * have matched it against the real rule, do not forget
+		 * to drop the refcount that the fake rule holds */
+		if (r->type == IPTCC_R_JUMP
+		    && r->jump)
+			r->jump->references--;
+
 		set_changed(*handle);
 		free(r);
 		return 1;