licence URL in the Copyright tag does not work
Steps to reproduce
Upload a file that contains COPYRIGHT tag with URL to a creative commons licence:
$ ffprobe 02\ -\ Nologic.flac
Input #0, flac, from '02 - Nologic.flac':
Metadata:
TITLE : Nologic
ARTIST : Luka Prinčič
album_artist : Luka Prinčič
ALBUM : Of Judy Stroat
DATE : 2019
track : 02
TRACKTOTAL : 10
GENRE : Leftfield
COPYRIGHT : https://creativecommons.org/licenses/by-sa/4.0/
Duration: 00:05:45.29, start: 0.000000, bitrate: 1438 kb/s
Stream #0:0: Audio: flac, 44100 Hz, stereo, s32 (24 bit)
What happens?
Funkwhale (at open.audio) does not display the licence information:
What is expected?
The metadata of the file should display (and link to) correct Licencing information
Context
Funkwhale version(s) affected: 0.18+git.a7f496af