$ git clone -n https://src.fedoraproject.org/rpms/perl-Module-Reader.git /var/lib/mock/f45-build-24907-607/root/chroot_tmpdir/scmroot/perl-Module-Reader
Cloning into '/var/lib/mock/f45-build-24907-607/root/chroot_tmpdir/scmroot/perl-Module-Reader'...
$ git fetch origin 8940067eeca4882eef76b517d92ee82351c11714:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-Module-Reader
 * [new ref]         8940067eeca4882eef76b517d92ee82351c11714 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 8940067 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild