$ git clone -n https://src.fedoraproject.org/rpms/perl-Module-CPANfile.git /var/lib/mock/f45-build-24778-606/root/chroot_tmpdir/scmroot/perl-Module-CPANfile
Cloning into '/var/lib/mock/f45-build-24778-606/root/chroot_tmpdir/scmroot/perl-Module-CPANfile'...
$ git fetch origin b280daba8b0b1f5be8267ba321a35331dbbf6a95:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-Module-CPANfile
 * [new ref]         b280daba8b0b1f5be8267ba321a35331dbbf6a95 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at b280dab Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild