Fix animation bug (#763) (#764)

Author: chiuam

Libraries/Animated/src/nodes/AnimatedValue.js

@@ -175,6 +175,13 @@ class AnimatedValue extends AnimatedWithChildren {
   resetAnimation(callback?: ?(value: number) => void): void {
     this.stopAnimation(callback);
     this._value = this._startingValue;
+    // TODO(macOS ISS#2323203): A bug fix that hasn't been merged to upstream yet.
+    if (this.__isNative) {
+      NativeAnimatedAPI.setAnimatedNodeValue(
+        this.__getNativeTag(),
+        this._startingValue,
+      );
+    }
   }
 
   _onAnimatedValueUpdateReceived(value: number): void {