message: FixedLayout: adjust to scroll only if panel is animated
diff: @@ -27,6 +27,7 @@ export type TransitionStartEventDetail = {
  scrolls: Scrolls;
  from: string;
  to: string;
  + isBack: boolean;
  };
  interface ViewsScrolls {
  @@ -200,6 +201,7 @@ class View extends Component<ViewProps & DOMProps, ViewState> {
  detail: {
  from: this.state.prevPanel,
  to: this.state.nextPanel,
  + isBack: this.state.isBack,
  scrolls,
  },
  };
  