[bug] [gui] When selecting a folder/file, the path shown does not correspond to the contents shown

[midwan]

Describe the bug
When opening the SelectFile or SelectFolder dialogs, we have a Path showing at the top, and the contents showing in a Listview below it. However, sometimes the contents do not correspond to the path shown above.
E.g. when using the SelectFolder dialog multiple times, the contents are from the last selected folder - but the path shown is that of the Amiberry start path.

Selecting the path and hitting Enter will update the contents to the correct ones. But selecting the .. option from the contents, will go to the parent directory of the Path shown, not the location the contents correspond to.

To Reproduce
Steps to reproduce the behavior:

1. Go to Hard drives in the GUI

2. Click on Add Directory and navigate somewhere outside the starting path to add one (doesn't matter which one)

3. Click the button to Add another Directory

4. See that the Path shown is the starting path, but the contents shown are those of the last selected directory.

Expected behavior
The contents shown must correspond to the path shown above.