From b46acbed321413f3df53c3d027a3bcb68f630368 Mon Sep 17 00:00:00 2001
From: Neil <nyamatongwe@gmail.com>
Date: Thu, 15 Apr 2021 09:05:45 +1000
Subject: Avoid warning from MSVC.

---
 gtk/ScintillaGTK.cxx | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/gtk/ScintillaGTK.cxx b/gtk/ScintillaGTK.cxx
index 39c699845..be5ac01b9 100755
--- a/gtk/ScintillaGTK.cxx
+++ b/gtk/ScintillaGTK.cxx
@@ -2997,7 +2997,9 @@ void ScintillaGTK::SetDocPointer(Document *document) {
 		sciAccessible = ScintillaGTKAccessible::FromAccessible(accessible);
 		if (sciAccessible && pdoc) {
 			oldDoc = pdoc;
-			oldDoc->AddRef();
+			if (oldDoc) {
+				oldDoc->AddRef();
+			}
 		}
 	}
 
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