Why are the identifiers more needed now than they were before metadata download downloaded them?
Say I have a book that has no identifiers. And for whatever reason, I don't want any. Or I have one identifer, and I don't want to see any more.
I download metadata, and get my tags,
based on the information previously available. BUT identifiers get downloaded too. Now, if I want, I can override the identifiers by hand each time, choosing the old set to preserve.
What is wrong with having the option to disable updating identifiers, like any other metadata type? If I want to redownload metadata, I am no worse off than I was before I used Metadata Download the first time.
If identifiers are needed for some sort of caching during the download process itself, I don't know why, but you'd know better than I would. But I can't think why they need to be persistent. Even if you use Cover Download only, surely you can find them the same way you find them if there is one/no identifier?
When downloading only cover, no identifiers are stored.
