Index: cord.c
===================================================================
--- cord.c	(revision 28980)
+++ cord.c	(revision 28981)
@@ -187,6 +187,7 @@
 
 	memset(&proto, 0, sizeof(proto));
 	memset(&tshp, 0, sizeof(tshp));
+	memset(&shape, 0, sizeof(shape));
 
 	tshp.shape = &shape;
 	proto.tr.alloced = proto.tr.used = 1; /* has the canonical form only */