Clicking Source doesn't display the current paragraph from WYSIWYG

Steps to reproduce:

1. Edit Sandbox.WebHome in WYSIWYG -> http://localhost:8080/xwiki/bin/edit/Sandbox/WebHome
2. Scroll down to the bottom of the page
3. Click on the Source button
4. Click again on Source to go back to WYSIWYG

Expected result: When switching between Source and WYSIWYG I see the same paragraph (not always the first one).

Actual result: Whenever I switch between Source and WYSIWYG the page is scrolled to the top.

My use case is that I am working on a large page and I want to switch to Source to check or modify something in the Wiki editor.
Scrolling the page to the top is counter productive.