$ git clone -n https://src.fedoraproject.org/rpms/python-mdurl.git /var/lib/mock/f45-build-31516-652/root/chroot_tmpdir/scmroot/python-mdurl
Cloning into '/var/lib/mock/f45-build-31516-652/root/chroot_tmpdir/scmroot/python-mdurl'...
$ git fetch origin e16f8867af5beada62480aee87745af6f1c7f378:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/python-mdurl
 * [new ref]         e16f8867af5beada62480aee87745af6f1c7f378 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at e16f886 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild