Assembly: Replace Tangent+Parallel+Planar by 'Distance'.

src/Gui/CommandDoc.cpp

@@ -1341,7 +1341,7 @@ void StdCmdDelete::activated(int iMsg)
         ViewProviderDocumentObject *vpedit = nullptr;
         if(editDoc)
             vpedit = dynamic_cast<ViewProviderDocumentObject*>(editDoc->getInEdit());
-        if(vpedit) {
+        if(vpedit && !vpedit->acceptDeletionsInEdit()) {
             for(auto &sel : Selection().getSelectionEx(editDoc->getDocument()->getName())) {
                 if(sel.getObject() == vpedit->getObject()) {
                     if (!sel.getSubNames().empty()) {

src/Gui/PreferencePages/DlgSettingsWorkbenchesImp.cpp

@@ -465,7 +465,7 @@ QStringList DlgSettingsWorkbenchesImp::getDisabledWorkbenches()
     ParameterGrp::handle hGrp;
 
     hGrp = App::GetApplication().GetParameterGroupByPath("User parameter:BaseApp/Preferences/Workbenches");
-    disabled_wbs = QString::fromStdString(hGrp->GetASCII("Disabled", "NoneWorkbench,TestWorkbench,AssemblyWorkbench"));
+    disabled_wbs = QString::fromStdString(hGrp->GetASCII("Disabled", "NoneWorkbench,TestWorkbench"));
 #if QT_VERSION >= QT_VERSION_CHECK(5,15,0)
     unfiltered_disabled_wbs_list = disabled_wbs.split(QLatin1String(","), Qt::SkipEmptyParts);
 #else

src/Gui/ViewProviderDocumentObject.h

@@ -94,6 +94,8 @@ public:
     App::DocumentObject *getObject() const {return pcObject;}
     /// Asks the view provider if the given object can be deleted.
     bool canDelete(App::DocumentObject* obj) const override;
+    /// Ask the view provider if it accepts object deletions while in edit
+    virtual bool acceptDeletionsInEdit() { return false; }
     /// Get the GUI document to this ViewProvider object
     Gui::Document* getDocument() const;
     /// Get the python wrapper for that ViewProvider