Open a Text & Image component and add a link to an internal page in the rich text editor that is some levels down the tree. Close the dialog for the Text & Image component. Edit the Text & Image component again, put the cursor at the link, and click the button to edit the link. See that the tree does not expand to the page linked to as it did in 4.5.

Same for the asset link chooser in the rich text editor.

Note: Unlike the related issue, the tree doesn't seem to expand whether or not the URL used by the visitor matches the domain in the site definition.