fix getDerivedStateFromProps setState

Author: jljsj33

package.json

@@ -1,6 +1,6 @@
 {
   "name": "rc-tween-one",
-  "version": "2.6.1",
+  "version": "2.6.2",
   "description": "tween-one anim component for react",
   "keywords": [
     "react",

src/TweenOneGroup.jsx

@@ -20,7 +20,7 @@ class TweenOneGroup extends Component {
     const nextState = {
       prevProps: props,
     };
-    if (prevProps) {
+    if (prevProps && props !== prevProps) {
       const nextChildren = toArrayChildren(props.children);
       if (Object.keys($self.isTween).length && !props.exclusive) {
         $self.animQueue.push(nextChildren);