From f12cc4f311fae6503f11aaa886ea883f4d0566a8 Mon Sep 17 00:00:00 2001
From: Ondrej Pesek <pesej.ondrek@gmail.com>
Date: Sat, 7 Dec 2024 20:05:15 +0100
Subject: [PATCH] fix toUnselect could be undefined

---
 gui/wxpython/gmodeler/canvas.py | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/gui/wxpython/gmodeler/canvas.py b/gui/wxpython/gmodeler/canvas.py
index 99cedd034e5..c9583992082 100644
--- a/gui/wxpython/gmodeler/canvas.py
+++ b/gui/wxpython/gmodeler/canvas.py
@@ -443,6 +443,8 @@ def _onSelectShape(self, shape, append=False):
 
             if not append:
                 toUnselect = [s for s in shapeList if s.Selected()]
+            else:
+                toUnselect = []
 
             shape.Select(True, dc)