Bug: unchanged info of the linked item
What I am referring to seems to be a bug, because it didn't exist in previous versions, but it keeps happening after the upgrade. In previous versions, when I linked a file to an item and then moved and renamed it, the file name would change according to the file format I specified, and the information linked to the item would also change. However, now the file name changes, but the information linked to the item remains unchanged.
If the filename I originally had before the attachment was just a bunch of numbers that didn't match the actual file information (as many files in the Internet Archive do), I wouldn't want to keep seeing it.
Furthermore, when I try to find the file attached to an item on disk, it is very confusing if the filenames are different.
Sometimes I have multiple versions of the same book, so I attach multiple files to one same item, and in these cases, it's even harder to find the file I'm looking for on disk, because the attachment title shown in the items list and the filename of the file on disk are different.