Bandcamp modified dates, a new option and/or a warning?

[UltimateRiff]

I don't know if it's revealed in the API, but Bandcamp shows up to at least three dates for albums in the page source, the release date, the publish date, and the modified date. I forget what the difference between the first two is, but the third is probably the most helpful, as it shows when the most recent change to the album was (for example, a tracklist change or an album art change, both of which should get a new MusicBrainz release).

I believe the modified date also includes other modifications which wouldn't likely get their own release (like editing the credits or description), so I don't know that we should automatically use that date for the release date, but having a warning and the option to use that date would be a good addition

an example release: https://vyletpony.bandcamp.com/track/alicorntwilight
and the (current) dates given (through the Bandcamp importer script