[Harmony Enhancements] Allow overriding Harmony's label choice based on custom MBID mapping #7
Description
Harmony currently selects and processes the label from a single provider only (for seeding purposes).
This can be problematic when the provider returns something else than the release label, like Tidal (kellnerd/harmony#133) or there are discrepancies Harmony's post-processing leads to choosing [no label] (kellnerd/harmony@44cf876) when another provider has the actually correct label.
For example, this release has three different labels but only one of them is a release label in the sense of MB:
https://harmony.pulsewidth.org.uk/release?spotify=2sF037ekind01BlHuCLvKm>in=019805620061&deezer=&itunes=&tidal=®ion=US&ts=1761594328
5684731 Records DK
Ictasis Music Group
Symphonic Distribution
To accommodate this situation, mapLabelMbids (baffdc1) should be improved to allow overriding existing mappings from Harmony with the user's settings.