Shared Playlist display User UUID

[Robertmw]

In Linux player, the User column display the UUID of the owner instead of Nickname/Name.

Steps:

1) Add a song to a shared playlist.

2) Open playlist, observe the User column.

3) After refresh (switch between playlists), users are displayed as expected.

PS: At this moment, the playlist has only 2 users (me and the owner) - this bug might affect other collaborators and not only the owner.

PS2: Link to playlist: https://open.spotify.com/user/217oiov6wfagtifmxbai7bvaa/playlist/47Fik0YTBF12VbeN30hTev