From 61c3939cb7ef0e84a9956ababc129aabfe2386d4 Mon Sep 17 00:00:00 2001
From: Zeno Rogue <zeno@attnam.com>
Date: Sun, 1 Nov 2020 11:30:03 +0100
Subject: [PATCH] fixed clearfrom if a heptagon is adjacent to itself

---
 cell.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/cell.cpp b/cell.cpp
index 768a82a9..5fd578c9 100644
--- a/cell.cpp
+++ b/cell.cpp
@@ -408,7 +408,7 @@ EX void clearfrom(heptagon *at) {
       }
     int edges = at->degree();
     if(bt::in() && WDIM == 2) edges = at->c7->type;
-    for(int i=0; i<edges; i++) if(at->move(i)) {
+    for(int i=0; i<edges; i++) if(at->move(i) && at->move(i) != at) {
       if(at->move(i)->alt != &deletion_marker)
         q.push(at->move(i));    
       unlink_cdata(at->move(i));