Duplicate playlist entries when using proxy plugin

[thomas-mc-work]

Hello!
My setup consists of two machines with each having an MPD server running. First machine has the music data locally. Second machine has the music mounted and is using the proxy plugin to use the database of instance one. Now what happens is that playlists in the playlists folder appear twice in the MPD database. The playlists folder is also physically on machine one and mounted on machine two. Both configs refer to it, same as with the music folder config directive. Is that behavior intentional? I expected machine two to use the database from machine one and only use the local files for getting the raw data. When I remove the playlist config option on machine two then I get an error when opening a playlist. When I remove it from machine one then it is working.