From 776c357265a56c0eb9672477832637f654defcac Mon Sep 17 00:00:00 2001
From: MaxED <j.maxed@gmail.com>
Date: Mon, 17 Jun 2013 09:42:49 +0000
Subject: [PATCH] Visual mode: fixed a freeze when sectors with sector effects
 were recursively updating each other.

---
 Source/Plugins/BuilderModes/VisualModes/SectorData.cs | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/Source/Plugins/BuilderModes/VisualModes/SectorData.cs b/Source/Plugins/BuilderModes/VisualModes/SectorData.cs
index 38b2791a..1ade6a87 100644
--- a/Source/Plugins/BuilderModes/VisualModes/SectorData.cs
+++ b/Source/Plugins/BuilderModes/VisualModes/SectorData.cs
@@ -182,6 +182,10 @@ namespace CodeImp.DoomBuilder.BuilderModes
 			// Also reset the sectors that depend on this sector
 			foreach(KeyValuePair<Sector, bool> s in updatesectors)
 			{
+				//mxd
+				BaseVisualSector vs = (BaseVisualSector)mode.GetVisualSector(s.Key);
+				if(vs.Changed) continue;
+
 				SectorData sd = mode.GetSectorData(s.Key);
 				sd.Reset();
 			}