Single word title issues with rollups

I just wanted to mention a recurrent problem we have with Discover - when we have single word titles (though it can happen with any title, it is more common with one word or common titles), completely unlike titles will roll up together.
The only “solution” we are given is to break cataloging rules to separate them.
This should not be the solution. The rollup failures on these needs to be worked out.
I just ran into another today, the title Sicily, where a 27 page government document from 1993 rolled up with a 257 page 2026 travel guide.

This really needs to be fixed.
There is an enhancement request, but it’s not really an enhancement, it’s a bug.