From 6ad885fdd34bcb18f0720b06357654fce85068b8 Mon Sep 17 00:00:00 2001
From: 0penBrain <48731257+0penBrain@users.noreply.github.com>
Date: Mon, 28 Feb 2022 19:20:13 +0100
Subject: [PATCH] PartDesign: fix crash in MultiTransform if moving on empty
 list

---
 src/Mod/PartDesign/Gui/TaskMultiTransformParameters.cpp | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/src/Mod/PartDesign/Gui/TaskMultiTransformParameters.cpp b/src/Mod/PartDesign/Gui/TaskMultiTransformParameters.cpp
index 88a2d00322..f284b32867 100644
--- a/src/Mod/PartDesign/Gui/TaskMultiTransformParameters.cpp
+++ b/src/Mod/PartDesign/Gui/TaskMultiTransformParameters.cpp
@@ -451,6 +451,8 @@ void TaskMultiTransformParameters::moveTransformFeature(const int increment)
     PartDesign::MultiTransform* pcMultiTransform = static_cast<PartDesign::MultiTransform*>(TransformedView->getObject());
     std::vector<App::DocumentObject*> transformFeatures = pcMultiTransform->Transformations.getValues();
 
+    if (transformFeatures.empty()) return;
+
     App::DocumentObject* feature = transformFeatures[row];
     transformFeatures.erase(transformFeatures.begin() + row);
     QListWidgetItem* item = new QListWidgetItem(*(ui->listTransformFeatures->item(row)));