CreatePlaylist api response sends blank/empty playlist ID

[AidesDeimos]

gonic version: 0.16.2

if from docker, docker tag: latest
if from source, git tag/branch: n/a

When creating a new playlist, the ID in gonic's response is blank. This causes some clients (symfonium) to fail when attempting to push updates.

This doesn't appear to be an issue with other api responses (not sure how to test them all thought). Existing playlists can be imported and updated without issue so it would seem gonic is providing the playlist ID for other api calls like GetPlaylist(s)