When I submit a new disc to Musicbrainz, the track editor (which now seems to be only the advanced one - I cannot go back to the simple text-based form one?) shows up with only one track, instead of all the tracks as before.

As an example, here's the link I used to try and add:

http://mm.musicbrainz.org/bare/cdlookup.html?toc=1+21+355525+150+18284+31348+47101+64922+83849+103350+115826+128026+152775+166126+179213+194390+214571+233201+253424+270872+286689+314071+327560+339511&tracks=21&id=wMxKbLxtFPrXLUC0pZ8EpVJPzJs-

Attaching a screenshot of what I get to see instead.