Show document links in attachments folder when in 'Folder view'

When I attach a URL link to A) text, or B) to a playlist, they don't show up in the attachments folder when I select the folder from the sidebar - they only show up when using the Filter.

In the case above I linked the same dropbox shortcut. I only see when filtering for the 'Attachments' folder. Both show as a *.zip but one has the name I assigned it when attaching to the playlist.