From f5600a65ff53bc6e9acb5570c49058527231149e Mon Sep 17 00:00:00 2001
From: Zeno Rogue <zeno@attnam.com>
Date: Wed, 11 Mar 2020 11:33:47 +0100
Subject: [PATCH] fixed a potential problem in floorshapes

---
 floorshapes.cpp | 1 +
 1 file changed, 1 insertion(+)

diff --git a/floorshapes.cpp b/floorshapes.cpp
index 8caf3a85..1cffd9e7 100644
--- a/floorshapes.cpp
+++ b/floorshapes.cpp
@@ -640,6 +640,7 @@ void geometry_information::generate_floorshapes() {
   heptagon modelh;
   cell model;
   model.master = &modelh;
+  modelh.c7 = &model;
   model.type = modelh.type = S7;
   
   auto mmerge1 = [&] (int i, int j) { model.c.setspin(i, j, false); modelh.c.setspin(i, j, false); };