Tween.IsActive now doesn't care if the tween reference is NULL and ju…

…st returns FALSE

_DOTween.Assembly/DOTween/DOTween.cs

@@ -34,7 +34,7 @@ namespace DG.Tweening
     public class DOTween
     {
         /// <summary>DOTween's version</summary>
-        public static readonly string Version = "1.2.375"; // Last version before modules: 1.1.755
+        public static readonly string Version = "1.2.380"; // Last version before modules: 1.1.755
 
         ///////////////////////////////////////////////
         // Options ////////////////////////////////////

_DOTween.Assembly/DOTween/TweenExtensions.cs

@@ -494,14 +494,14 @@ public static float ElapsedDirectionalPercentage(this Tween t)
             return isInverse ? 1 - perc : perc;
         }
 
-        /// <summary>Returns FALSE if this tween has been killed.
+        /// <summary>Returns FALSE if this tween has been killed or is NULL, TRUE otherwise.
         /// <para>BEWARE: if this tween is recyclable it might have been spawned again for another use and thus return TRUE anyway.</para>
         /// When working with recyclable tweens you should take care to know when a tween has been killed and manually set your references to NULL.
         /// If you want to be sure your references are set to NULL when a tween is killed you can use the <code>OnKill</code> callback like this:
         /// <para><code>.OnKill(()=> myTweenReference = null)</code></para></summary>
         public static bool IsActive(this Tween t)
         {
-            return t.active;
+            return t != null && t.active;
         }
 
         /// <summary>Returns TRUE if this tween was reversed and is set to go backwards</summary>