There are two problems with this local file upload template at https://en.wikisource.org/wiki/Special:Upload
First problem is that the copyright selection contains duplicate template references (public domain) and one the assigned abbreviation is no longer valid.
Second problem is that a selected copyright tag inserts it's own category upon upload, and this precludes the addition of a user selected category. In my case, the selected copyright: CC0 1.0 (public domain) license eliminated my selected category.
Most, if not all, my uploads are temporary and are assigned the "Instructional" category. They should not be stored on the commons and I delete them after several months.
the resulting category deletes my selected category.