Moved OUT of development. That is for code Developer, not requests.
Not a bad idea. But... (you knew that was coming
)
Downloaded Metadata can be even more wrong
In most cases, the metadata will follow the ISBN.
It is when there is no ISBN (or it was wrong) that Calibre download guesses.
My personal preference is to put the IMPRINT into {Publisher}
Harper Voyager, Baen Fantasy, Baen SF, Baen Books (Baen Publishing Enterprises -> Baen Books. a perfect safe transform
)