$ git clone -n https://src.fedoraproject.org/rpms/rubygem-net-ldap.git /var/lib/mock/f45-build-35096-693/root/chroot_tmpdir/scmroot/rubygem-net-ldap
Cloning into '/var/lib/mock/f45-build-35096-693/root/chroot_tmpdir/scmroot/rubygem-net-ldap'...
$ git fetch origin 73d5ad31f79ea26f39c0885811d63911967712f0:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rubygem-net-ldap
 * [new ref]         73d5ad31f79ea26f39c0885811d63911967712f0 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 73d5ad3 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild