$ git clone -n https://src.fedoraproject.org/rpms/perl-Module-Build-Prereqs-FromCPANfile.git /var/lib/mock/f45-build-24772-606/root/chroot_tmpdir/scmroot/perl-Module-Build-Prereqs-FromCPANfile
Cloning into '/var/lib/mock/f45-build-24772-606/root/chroot_tmpdir/scmroot/perl-Module-Build-Prereqs-FromCPANfile'...
$ git fetch origin 889317047e87aad19c4e1f0bef7827d3371b99d8:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-Module-Build-Prereqs-FromCPANfile
 * [new ref]         889317047e87aad19c4e1f0bef7827d3371b99d8 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 8893170 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild