From 246a6c50bb407e155f155dd991e7def2e655ee8e Mon Sep 17 00:00:00 2001
From: Noisyfox <timemanager.rick@gmail.com>
Date: Mon, 11 May 2026 17:00:31 +0800
Subject: [PATCH] Always clear existing facets first if not kept

---
 src/libslic3r/Model.cpp | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/src/libslic3r/Model.cpp b/src/libslic3r/Model.cpp
index 000ab997a9..0067684f15 100644
--- a/src/libslic3r/Model.cpp
+++ b/src/libslic3r/Model.cpp
@@ -1997,6 +1997,10 @@ std::optional<TriangleSelector::SavedPainting> ModelVolume::save_painting() cons
 
 void ModelVolume::restore_painting(const std::optional<TriangleSelector::SavedPainting>& saved, const bool keep_existing_paint)
 {
+    if (!keep_existing_paint) {
+        reset_extra_facets();
+    }
+
     if (!saved) {
         return;
     }