fix group onChange is function

Author: jljsj33

package.json

@@ -1,6 +1,6 @@
 {
   "name": "rc-tween-one",
-  "version": "2.1.4",
+  "version": "2.1.5",
   "description": "tween-one anim component for react",
   "keywords": [
     "react",

src/TweenOneGroup.jsx

@@ -130,8 +130,8 @@ class TweenOneGroup extends Component {
       const appear = transformArguments(this.props.appear, child.key, i);
       animation = appear && this.props.enter || null;
     }
-    const onChange = this.onChange.bind(this, animation, child.key, type);
     const animate = transformArguments(animation, child.key, i);
+    const onChange = this.onChange.bind(this, animate, child.key, type);
     const props = {
       key: child.key,
       animation: animate,