From 8ba73c6ff2d9912520f7f6af82e9020c3fe74ab3 Mon Sep 17 00:00:00 2001
From: Nyall Dawson <nyall.dawson@gmail.com>
Date: Wed, 29 Apr 2020 09:01:04 +1000
Subject: [PATCH] Followup 800c54f, nicer fix

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

diff --git a/src/core/qgstessellator.cpp b/src/core/qgstessellator.cpp
index 2cdbab4d3ae..1925d465b97 100644
--- a/src/core/qgstessellator.cpp
+++ b/src/core/qgstessellator.cpp
@@ -442,7 +442,7 @@ void QgsTessellator::addPolygon( const QgsPolygon &polygon, float extrusionHeigh
     const double *zData = !mNoZ ? exterior->zData() : nullptr;
     for ( int i = 0; i < 3; i++ )
     {
-      float z = ( ( mNoZ || !exterior->is3D() ) ? 0 : *zData++ );
+      float z = ( !zData ? 0 : *zData++ );
       if ( z < zMin )
         zMin = z;
       if ( z > zMax )