Discogs importer: Bad handling of index tracks on importing

[DoktorSultan]

Currently, Discogs' "index tracks" are parsed into one single track on MB

But the most common case of index tracks (Classical music) actually should result in each subtrack having an individual track on MB

For instance if Discogs lists:
Index Track Title Of Composition

1. Part 1
2. Part 2
3. Part 3

This should become in MB

1. Index Track Title of Composition: Part 1
2. Index Track Title of Composition: Part 2
3. Index Track Title of Composition: Part 3

While it currently is translated into:

1. Index Track Title of Composition: Part 1 / Part 2 / Part 3

It's not 100% consistent, as sometimes, the current approach would be correct, but this is far less common.

I think it's worth considering changing this.
Or, as far as it would be possible, provide an option for parse Discogs data both ways?

Or ideally... try to auto detect when what is appropriate by looking at the track positions.
On Discogs:
1.1
1.2
1.3
or
1a
1b
1c
(Or similarly with A1.1 A1.2..., A1a, A1b, ...)
=> This would mean it should become one track on MB

But
1.
2.
3.
=> Should become 3 tracks in MB.

This is actually regardless of the use of an index track or not.