From bcd73292d394e562a9ea7e99f32e75c355954712 Mon Sep 17 00:00:00 2001
From: Christoph Oelckers <coelckers@users.noreply.github.com>
Date: Thu, 12 Jan 2017 09:58:13 +0100
Subject: [PATCH] - checked P_GetRenderSector against the original
 implementation from before the glsegextras were added and reinstated all
 checks from that version.

---
 src/p_glnodes.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/p_glnodes.cpp b/src/p_glnodes.cpp
index 0860c98b8f..862aafeb43 100644
--- a/src/p_glnodes.cpp
+++ b/src/p_glnodes.cpp
@@ -1443,7 +1443,7 @@ void P_SetRenderSector()
 		{
 			int partner = (int)(p - segs);
 
-			if (partner < 0 || partner >= numsegs)
+			if (partner < 0 || partner >= numsegs || &segs[partner] != p)
 			{
 				segs[i].PartnerSeg = nullptr;
 			}