Followup fixup f10f4a5

Author: m-kuhn

src/app/qgsfieldsproperties.h

@@ -56,13 +56,15 @@ class APP_EXPORT QgsFieldsProperties : public QWidget, private Ui_QgsFieldsPrope
             : mType( Field )
             , mColumnCount( 1 )
             , mShowAsGroupBox( false )
+            , mShowLabel( true )
         {}
 
         DesignerTreeItemData( Type type, const QString& name )
             : mType( type )
             , mName( name )
             , mColumnCount( 1 )
             , mShowAsGroupBox( false )
+            , mShowLabel( true )
         {}
 
         QString name() const { return mName; }