From 563205261f0eb86b3e3e0e2fb129805c16b7c3e3 Mon Sep 17 00:00:00 2001
From: Ben Harris <bjh21@bjh21.me.uk>
Date: Mon, 17 Jul 2017 23:23:44 +0100
Subject: [PATCH] Another assertion.

---
 bedstead.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/bedstead.c b/bedstead.c
index cc9b71b..f47f521 100644
--- a/bedstead.c
+++ b/bedstead.c
@@ -1906,6 +1906,7 @@ join_ends(point *a, point *b)
 	assert(a->prev != NULL);
 	assert(b->prev == NULL);
 	assert(b->next != NULL);
+	assert(vec_eqp(a->v, b->v));
 	a->next = b;
 	b->prev = a;
 	fix_identical(a); /* Will delete a */
-- 
2.30.2