From 5642620281df4931c39d479415f803ffcc366a25 Mon Sep 17 00:00:00 2001
From: Ryan Kembrey <ryan.kembrey@student.uts>
Date: Sun, 14 Sep 2025 16:38:53 +1000
Subject: [PATCH] TechDraw: Fix projection groups not recursively deleting

---
 src/Mod/TechDraw/App/DrawProjGroup.cpp | 22 ++++++++++++++++++++++
 src/Mod/TechDraw/App/DrawProjGroup.h   |  1 +
 2 files changed, 23 insertions(+)

diff --git a/src/Mod/TechDraw/App/DrawProjGroup.cpp b/src/Mod/TechDraw/App/DrawProjGroup.cpp
index c1c4ca5385..1a8d01c696 100644
--- a/src/Mod/TechDraw/App/DrawProjGroup.cpp
+++ b/src/Mod/TechDraw/App/DrawProjGroup.cpp
@@ -1211,3 +1211,25 @@ void DrawProjGroup::handleChangedPropertyType(Base::XMLReader& reader, const cha
         spacingY.setValue(spacingYProperty.getValue());
     }
 }
+
+void DrawProjGroup::unsetupObject()
+{
+    if (getDocument() && !getDocument()->isAnyRestoring()) {
+
+        std::vector<std::string> childNamesToDelete;
+        for (App::DocumentObject* child : Views.getValues()) {
+            if (child) {
+                const char* name = child->getNameInDocument();
+                if (name) {
+                    childNamesToDelete.push_back(name);
+                }
+            }
+        }
+
+        for (const std::string& childName : childNamesToDelete) {
+            getDocument()->removeObject(childName.c_str());
+        }
+    }
+
+    DrawViewCollection::unsetupObject();
+}
diff --git a/src/Mod/TechDraw/App/DrawProjGroup.h b/src/Mod/TechDraw/App/DrawProjGroup.h
index a10935a51c..fcd691bfdf 100644
--- a/src/Mod/TechDraw/App/DrawProjGroup.h
+++ b/src/Mod/TechDraw/App/DrawProjGroup.h
@@ -152,6 +152,7 @@ public:
     void dumpTouchedProps();
 
 protected:
+    void unsetupObject() override;
     void onChanged(const App::Property* prop) override;
 
     /// Annoying helper - keep in sync with DrawProjGroupItem::TypeEnums