Old playlists not available since 10.9 upgrade

[mscroggi]

I think I got a playlist to update.  it appears that you need to select refresh metadata as "Replace all metadata" of the playlist after you update the xml file and the songs appear on the list in the UI.

The next time you shutdown(restart) the jellyfin server, the changes are written to the TypedBaseItems table.

I got mine to update by doing the 'scan library files' in the dashboard.   I tested stopping the server, adding to the playlist xml's and restarting..  It didn't seem to do any better than modifying the xml's and scanning library files.