Merge pull request #9646 from adirh3/fix_animations_render

Fixed animations causing unnecessary rendering

src/Avalonia.Base/Rendering/Composition/Animations/KeyFrameAnimationInstance.cs

@@ -175,6 +175,10 @@ namespace Avalonia.Rendering.Composition.Animations
 
         public override void Activate()
         {
+            if (_finished)
+            {
+                return;
+            }
             TargetObject.Compositor.AddToClock(this);
             base.Activate();
         }