Katello 4.1.2.1 - 404 error through content proxy due to incorrect location_href

Is it possible that this change (or another change with pulpcore 3.14.7) broke the mirror sync with EPEL 7 and EPEL 8 repositories? I now get an error This repository uses features which are incompatible with ‘mirror’ sync when syncing EPEL 7 & 8.