Impossible to add multiple tags to a playlist

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Operating system

Ubuntu 21.10

Browser name and version

Firefox 98.0b9

Expected behavior

It should be possible to add multiple tags to a playlist.

Actual behavior

When editing a playlist the "Tags" part of the form says to add "Comma-separated tags.".
When trying to add tags in the following format : techno,electro the form returns the following error : "Please add fewer than 11 tags"

I tried different variations (with a space, on a new line, etc) but the form always return the same error.

Also it was not clear to me if I had to add the # of the tag or not. Maybe this could be precised in the form.

Steps to reproduce behavior

Just edit a playlist and try to add more than 1 tag.