Fixed issue with multiple calls to Tween.restart

Author: photonstorm

CHANGELOG.md

@@ -98,6 +98,7 @@ Notes:
 * Creating a Tween with a `duration` of zero would cause the tweened object properties to be set to `NaN`. Now they will tween for one single frame before being set to progress 1. Fix #4235 (thanks @BigZaphod)
 * The First frame of a Texture would take on the appearance of the second frame in a Sprite Sheet created from trimmed Texture Atlas frames. Fix #4088 (thanks @Cirras)
 * `Tween.stop` assumed that the parent was the TweenManager. If the Tween has been added to the Timeline, that was not true and the stop method crashed (thanks @TadejZupancic)
+* Calling `Tween.restart` multiple times in a row would cause the tween to freeze. It will now disregard all additional calls to `restart` if it's already in a pending state (thanks @rgk)
 
 ### Examples, Documentation and TypeScript
 

src/tweens/tween/Tween.js

@@ -419,6 +419,11 @@ var Tween = new Class({
      */
     restart: function ()
     {
+        if (this.state === TWEEN_CONST.PENDING_ADD)
+        {
+            return this;
+        }
+
         if (this.state === TWEEN_CONST.REMOVED)
         {
             this.seek(0);
@@ -926,7 +931,7 @@ var Tween = new Class({
      * @method Phaser.Tweens.Tween#stop
      * @since 3.0.0
      *
-     * @param {number} [resetTo] - If you want to seek the tween, provide an value between 0 and 1.
+     * @param {number} [resetTo] - If you want to seek the tween, provide a value between 0 and 1.
      *
      * @return {this} This Tween instance.
      */