From b0bb0a0b4c9257bbeb0128f00db342cd77260719 Mon Sep 17 00:00:00 2001
From: Erwan MATHIEU <erwan.mathieu@ultimaker.com>
Date: Wed, 6 Sep 2023 15:56:39 +0200
Subject: [PATCH] Fix numpy exception with polygon scaling

CURA-10004
---
 UM/Math/Polygon.py | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/UM/Math/Polygon.py b/UM/Math/Polygon.py
index 053ac349cf..8bfb9a03f3 100644
--- a/UM/Math/Polygon.py
+++ b/UM/Math/Polygon.py
@@ -160,6 +160,9 @@ def scale(self, factor: float, origin: Optional[List[float]] = None) -> "Polygon
         point. If `None`, the 0,0 coordinate will be used.
         :return: A transformed polygon.
         """
+        if not self.isValid():
+            return self
+
         if origin is None:
             origin = [0, 0]