$ git clone -n https://src.fedoraproject.org/rpms/perl-Tie-Simple.git /var/lib/mock/f45-build-27117-621/root/chroot_tmpdir/scmroot/perl-Tie-Simple
Cloning into '/var/lib/mock/f45-build-27117-621/root/chroot_tmpdir/scmroot/perl-Tie-Simple'...
$ git fetch origin 0cc103f582abdbd6e6ef43f8e4b9494797137e94:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-Tie-Simple
 * [new ref]         0cc103f582abdbd6e6ef43f8e4b9494797137e94 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 0cc103f Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild