Using ion-nav-back-button my page does'nt scroll to top but using $ionicHistory.goBack(); it does. No idea why


I am trying to use the code from the docs with the call to the function $ionicHistory.goBack in the controller:

// JS $scope.myGoBack = function() { $ionicHistory.goBack(); };

In my View:

<button ng-click="$ionicGoBack()" >My back button</button>

This works but the when I get “back” to the previous page it always scrolls to the top.

If I use
<ion-nav-back-button class="button-clear" ng-click="$ionicGoBack()">back button</ion-nav-back-button>

The previous page does not scroll to the top.

I have some long lists and don’t want the user to scroll to the top when going back.

Is there a way to controll this behaviour?

Thanks for any help / pointers