$ git clone -n https://src.fedoraproject.org/rpms/perl-Roman.git /var/lib/mock/f45-build-26053-614/root/chroot_tmpdir/scmroot/perl-Roman
Cloning into '/var/lib/mock/f45-build-26053-614/root/chroot_tmpdir/scmroot/perl-Roman'...
$ git fetch origin 054f0233ee499ada5b69115caf6cd74471eb353e:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-Roman
 * [new ref]         054f0233ee499ada5b69115caf6cd74471eb353e -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 054f023 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild