From e98caf2c50884ef01d7854f6b9d766386f572b8c Mon Sep 17 00:00:00 2001
From: NathanSweet <nathan.sweet@gmail.com>
Date: Mon, 22 Apr 2013 11:33:07 +0200
Subject: [PATCH] Remove before adding to mix map.

Because it would be *crazy* to want to overwrite an existing map entry, and it's always better to do moar map lookups.
---
 spine-csharp/src/AnimationStateData.cs | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/spine-csharp/src/AnimationStateData.cs b/spine-csharp/src/AnimationStateData.cs
index c1b91f5ca..571e9fc08 100644
--- a/spine-csharp/src/AnimationStateData.cs
+++ b/spine-csharp/src/AnimationStateData.cs
@@ -46,7 +46,9 @@ namespace Spine {
 		public void SetMix (Animation from, Animation to, float duration) {
 			if (from == null) throw new ArgumentNullException("from cannot be null.");
 			if (to == null) throw new ArgumentNullException("to cannot be null.");
-			animationToMixTime.Add(new KeyValuePair<Animation, Animation>(from, to), duration);
+			KeyValuePair<Animation, Animation> key = new KeyValuePair<Animation, Animation>(from, to);
+			animationToMixTime.Remove(key);
+			animationToMixTime.Add(key, duration);
 		}
 
 		public float GetMix (Animation from, Animation to) {