Pagetree should remember the scroll position

Steps to reproduce:

1. Install Scroll Versions

2. Create a space, activate Duplicate Pagetitle feature in this space

3. Add enough pages for a vertical scroll bar to appear in the page tree sidebar

4. Scroll down and click on a page

Expected result:
The scroll bar should remember its position after page is loaded

Actual result:
The scroll bar jumps to the top and user has to scroll down again.

Additional info:
The issue is not reproducible in spaces without Scroll Versions activated.