MP4 copyright metadata - cprt not recognized

Should VLC look for the MP4 copyright metadata ilst tag in 'cprt' or '©cpy'?

http://atomicparsley.sourceforge.net/mpeg-4files.html says its 'cprt'.

ffmpeg also uses 'cprt'.

VLC uses '©cpy': https://github.com/videolan/vlc/blob/master/modules/demux/mp4/meta.c#L46

ffmpeg -f lavfi -i smptebars=duration=5:size=320x240:rate=15
-metadata copyright="My Copyright"
-metadata title="My Title"
-metadata artist="My Artist"
-metadata album="My Album"
-metadata composer="My Composer"
-metadata genre="My Genre"
test.mp4

AtomicParsley.exe test.mp4 -t

Atom "©nam" contains: My Title Atom "©ART" contains: My Artist Atom "©wrt" contains: My Composer Atom "©alb" contains: My Album Atom "©too" contains: Lavf58.45.100 Atom "©gen" contains: My Genre Atom "cprt" contains: My Copyright

Quicktime picks it up...

But VLC doesn't.