I got this with rawhide today, just accepting default partitioning scheme. Dump is attached.
Created attachment 298073 [details] Anaconda dump
Was it then reproducible? Because this looks like one of the cases where the lvm tools just randomly don't do what we expect :-/
I will re-test in kvm, I'm away from that real hardware for the weekend.
Does not happen in KVM. I'll scratch this up to LVM is shite.