Fix initial drag (#2474)

* Fix redraw order

* Fix initial drag item bug

* Fix indents

lib/timeline/component/ItemSet.js

@@ -1235,6 +1235,7 @@ ItemSet.prototype._onDragStart = function (event) {
     var dragLeftItem = this.touchParams.dragLeftItem;
     var dragRightItem = this.touchParams.dragRightItem;
     this.touchParams.itemIsDragging = true;
+    this.touchParams.selectedItem = item;
 
     if (dragLeftItem) {
       props = {
@@ -1257,8 +1258,6 @@ ItemSet.prototype._onDragStart = function (event) {
       this.touchParams.itemProps = [props];
     }
     else {
-      this.touchParams.selectedItem = item;
-
       var baseGroupIndex = this._getGroupIndex(item.data.group);
 
       var itemsToDrag = (this.options.itemsAlwaysDraggable && !item.selected) ? [item.id] : this.getSelection();
@@ -1323,7 +1322,8 @@ ItemSet.prototype._onDragStartAddItem = function (event) {
   newItem.id = id; // TODO: not so nice setting id afterwards
   newItem.data = this._cloneItemData(itemData);
   this._addItem(newItem);
-
+  this.touchParams.selectedItem = newItem;
+  
   var props = {
     item: newItem,
     initialX: event.center.x,