Merge pull request #8170 from RandomShaper/fix-uniform-move-2.1

Include uniform (Shift down) mode in only-one-Node2D dragging (2.1)

editor/plugins/canvas_item_editor_plugin.cpp

@@ -1529,7 +1529,7 @@ void CanvasItemEditor::_viewport_input_event(const InputEvent &p_event) {
 
 			dto = dto - (drag == DRAG_ALL || drag == DRAG_NODE_2D ? drag_from - drag_point_from : Vector2(0, 0));
 
-			if (uniform && drag == DRAG_ALL) {
+			if (uniform && (drag == DRAG_ALL || drag == DRAG_NODE_2D)) {
 				if (ABS(dto.x - drag_point_from.x) > ABS(dto.y - drag_point_from.y)) {
 					dto.y = drag_point_from.y;
 				} else {