From 4de525e7573ca0c568f0d64349f33e44bfdf7b46 Mon Sep 17 00:00:00 2001
From: Campbell Barton <campbell@blender.org>
Date: Fri, 8 Sep 2023 23:15:50 +1000
Subject: [PATCH] Fix assertion unwrapping UV's on a mesh without UV's

---
 source/blender/bmesh/intern/bmesh_query_uv.cc | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/source/blender/bmesh/intern/bmesh_query_uv.cc b/source/blender/bmesh/intern/bmesh_query_uv.cc
index d043b538ca1..9e872cbba32 100644
--- a/source/blender/bmesh/intern/bmesh_query_uv.cc
+++ b/source/blender/bmesh/intern/bmesh_query_uv.cc
@@ -50,6 +50,9 @@ BMUVOffsets BM_uv_map_get_offsets_from_layer(const BMesh *bm, const int layer)
 BMUVOffsets BM_uv_map_get_offsets(const BMesh *bm)
 {
   const int layer = CustomData_get_active_layer(&bm->ldata, CD_PROP_FLOAT2);
+  if (layer == -1) {
+    return {-1, -1, -1, -1};
+  }
   return BM_uv_map_get_offsets_from_layer(bm, layer);
 }