From 2aed5896d1c1b3e4a8c451b15f957a72c90a1036 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Jens=20M=C3=B6nig?= <jens@moenig.org>
Date: Fri, 4 Mar 2022 12:09:07 +0100
Subject: [PATCH] handle (some cases of) extent-less costumes

---
 HISTORY.md     | 1 +
 src/objects.js | 4 ++++
 2 files changed, 5 insertions(+)

diff --git a/HISTORY.md b/HISTORY.md
index c8d0750b..7d3b6b7e 100755
--- a/HISTORY.md
+++ b/HISTORY.md
@@ -23,6 +23,7 @@
 * animation library: fixed pen state for GLIDE, thanks, Brian!
 * threads: addressed security issues in the JIT-compiler, thanks, xBZZZZ!
 * gui: show project name in browser tab, thanks, Peter!
+* objects: handle (some cases of) extent-less costumes
 
 ### 2022-03-03
 * SciSnap2 extension update (FFT), thanks, Eckart!
diff --git a/src/objects.js b/src/objects.js
index f0ef78d7..b64c4879 100644
--- a/src/objects.js
+++ b/src/objects.js
@@ -3824,6 +3824,10 @@ SpriteMorph.prototype.wearCostume = function (costume, noShadow) {
         y = this.yPosition ? this.yPosition() : null,
         idx = isNil(costume) ? null : this.costumes.asArray().indexOf(costume);
 
+    if (costume && (!costume.width() || !costume.height())) {
+        costume = null;
+        idx = null;
+    }
     this.changed();
     this.costume = costume;
     this.fixLayout();