From 03636509906dd65636d91da18b650e967c9f1a82 Mon Sep 17 00:00:00 2001
From: Hans Goudey <hans@blender.org>
Date: Mon, 1 Jul 2024 13:58:58 -0400
Subject: [PATCH] Fix: Sculpt: Undo restore crash with first operation

Mistake in 057fdf4224e0e07a6020cabd4d2a1ca4f307f0a5
---
 source/blender/editors/sculpt_paint/sculpt.cc | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/source/blender/editors/sculpt_paint/sculpt.cc b/source/blender/editors/sculpt_paint/sculpt.cc
index c9ba22fb6d2..684e38b030a 100644
--- a/source/blender/editors/sculpt_paint/sculpt.cc
+++ b/source/blender/editors/sculpt_paint/sculpt.cc
@@ -1461,6 +1461,9 @@ static void restore_position(Object &object, const Span<PBVHNode *> nodes)
       break;
     }
     case PBVH_BMESH: {
+      if (!undo::get_bmesh_log_entry()) {
+        return;
+      }
       threading::parallel_for(nodes.index_range(), 1, [&](const IndexRange range) {
         for (PBVHNode *node : nodes.slice(range)) {
           for (BMVert *vert : BKE_pbvh_bmesh_node_unique_verts(node)) {