PD: modernize C++: use default member init

src/Mod/PartDesign/Gui/ViewProviderTransformed.h

@@ -35,10 +35,7 @@ class PartDesignGuiExport ViewProviderTransformed : public ViewProvider
     PROPERTY_HEADER_WITH_OVERRIDE(PartDesignGui::ViewProviderTransformed);
 
 public:
-    /// constructor
-    ViewProviderTransformed()
-        : pcRejectedRoot(nullptr) {}
-    /// destructor
+    ViewProviderTransformed() = default;
     ~ViewProviderTransformed() override  = default;
 
     // The feature name of the subclass
@@ -63,7 +60,7 @@ protected:
     bool checkDlgOpen(TaskDlgTransformedParameters* transformedDlg);
 
     // node for the representation of rejected repetitions
-    SoGroup           * pcRejectedRoot;
+    SoGroup           * pcRejectedRoot{nullptr};
 
     QString diagMessage;