From 88d829fb770129ed876b19da969692f555fdada4 Mon Sep 17 00:00:00 2001
From: cxl <cxl@f0d560ea-af0d-0410-9eb7-867de7ffcac7>
Date: Mon, 9 Dec 2019 08:27:37 +0000
Subject: [PATCH] GLDraw: Fixed GLVertex copy

git-svn-id: svn://ultimatepp.org/upp/trunk@13745 f0d560ea-af0d-0410-9eb7-867de7ffcac7
---
 uppsrc/GLDraw/VertexData.cpp | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/uppsrc/GLDraw/VertexData.cpp b/uppsrc/GLDraw/VertexData.cpp
index b1d1c14d3..30267d080 100644
--- a/uppsrc/GLDraw/VertexData.cpp
+++ b/uppsrc/GLDraw/VertexData.cpp
@@ -4,8 +4,10 @@ namespace Upp {
 
 GLVertexData::GLVertexData(const GLVertexData& src)
 {
-	data = src.data;
-	data->refcount++;
+	if(src.data) {
+		data = src.data;
+		data->refcount++;
+	}
 }
 
 GLVertexData& GLVertexData::operator=(const GLVertexData& src)