$ git clone -n https://src.fedoraproject.org/rpms/perl-CSS-Minifier.git /var/lib/mock/f45-build-22097-589/root/chroot_tmpdir/scmroot/perl-CSS-Minifier
Cloning into '/var/lib/mock/f45-build-22097-589/root/chroot_tmpdir/scmroot/perl-CSS-Minifier'...
$ git fetch origin a36d4bc05628284cd5fa6a599eddc13f83892b40:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-CSS-Minifier
 * [new ref]         a36d4bc05628284cd5fa6a599eddc13f83892b40 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at a36d4bc Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild