$ git clone -n https://src.fedoraproject.org/rpms/perl-Specio.git /var/lib/mock/f45-build-26224-616/root/chroot_tmpdir/scmroot/perl-Specio
Cloning into '/var/lib/mock/f45-build-26224-616/root/chroot_tmpdir/scmroot/perl-Specio'...
$ git fetch origin 13ea95ee2ccc340869ef7d55a7d46a3e76414d83:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-Specio
 * [new ref]         13ea95ee2ccc340869ef7d55a7d46a3e76414d83 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 13ea95e Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild