How to use the "Scan Repository" feature

[BLumia]

In the new tab screen, I can see a barcode scanner icon that will open up a dialog says "Scan repositories"

I assume this is a dialog that I could enter a path that contains a lot of git repo, and then it will scan the subfolders under that path? If so, I did that and attempt to click "OK", but sadly the "OK" button does nothing.

I tested this under both Windows and macOS, both does nothing when clicking OK.

Is this a bug or did I use it in a incorrect way? How can I understand this feature?

Thanks!