$ git clone -n https://src.fedoraproject.org/rpms/perl-Data-Binary.git /var/lib/mock/f45-build-22818-594/root/chroot_tmpdir/scmroot/perl-Data-Binary
Cloning into '/var/lib/mock/f45-build-22818-594/root/chroot_tmpdir/scmroot/perl-Data-Binary'...
$ git fetch origin 624b9086659892f8526f0b30fbef8e5a59cc9828:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-Data-Binary
 * [new ref]         624b9086659892f8526f0b30fbef8e5a59cc9828 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 624b908 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild