TreeItem scroll doesn't properly follow selected item when there is hidden items.

[BlotoPK]

Godot version

v4.0.2.stable.official [7a0977c]

System information

Windows 10

Issue description

The vertical scroll bar should follow the selected item as we select another. This works fine unless some items have been hidden, which the scroll bar seems to ignore, leading to undesirable results.

Steps to reproduce

Steps to reproduce with the Minimal reproduction project:
Launch the project. Write "za" in the LineEdit at the top. Unfold some items in order to have a Vertical ScrollBar. Go to the bottom and select one item. Then use the keyboard to go up. At some point, the selected item will be no longer on sight.

filtered_tree.mp4

Minimal reproduction project

filtered_tree2.zip