Sadly, as so often happens in the Fedora realm, bugs are left languishing due to lack of interest, time, or support coverage ("uh, custom partitioning in the text install is not supported") to receive the necessary mentoring.
Well. RH-F-originating software is often regarded highly, and then perhaps integrated (systemd, sssd). But I wonder why this generally does not seem to work in the reverse direction :-/ Using libsolv is nice, but seems like a consolation prize for not going the route of modifying zypper.