Button object used after pressed is called

 - by queueing for deletion node can call own cleanup methods

(cherry picked from commit c69ff6833c4bd6b42b9cad70928544fc6b7cbfc4)

editor/editor_properties_array_dict.cpp

@@ -306,7 +306,8 @@ void EditorPropertyArray::update_property() {
 		} else {
 			//bye bye children of the box
 			while (vbox->get_child_count() > 2) {
-				memdelete(vbox->get_child(2));
+				vbox->get_child(2)->queue_delete(); // button still needed after pressed is called
+				vbox->remove_child(vbox->get_child(2));
 			}
 		}