From 509953aa0d01381599625a015a33ae48db570267 Mon Sep 17 00:00:00 2001
From: Paul Ramsey <pramsey@cleverelephant.ca>
Date: Mon, 30 Oct 2017 20:26:52 +0000
Subject: [PATCH] Correctly handle in-place collapse of interior rings, closes
 #3922

git-svn-id: http://svn.osgeo.org/postgis/trunk@16082 b70326c6-7e19-0410-871a-916f4a2858ee
---
 liblwgeom/lwgeom.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/liblwgeom/lwgeom.c b/liblwgeom/lwgeom.c
index 8dfd99b81..9d52572a0 100644
--- a/liblwgeom/lwgeom.c
+++ b/liblwgeom/lwgeom.c
@@ -2178,7 +2178,7 @@ lwgeom_grid_in_place(LWGEOM *geom, const gridspec *grid)
 				/* Skip bad rings */
 				if (pa->npoints >= 4)
 				{
-					j++;
+					ply->rings[j++] = pa;
 				}
 				else
 				{
-- 
2.40.0