$ git clone -n https://src.fedoraproject.org/rpms/mate-polkit.git /var/lib/mock/f45-build-18078-508/root/chroot_tmpdir/scmroot/mate-polkit
Cloning into '/var/lib/mock/f45-build-18078-508/root/chroot_tmpdir/scmroot/mate-polkit'...
$ git fetch origin 36a79d9a7c42488ea104a64d1f1fe7e6c5bd1e6b:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/mate-polkit
 * [new ref]         36a79d9a7c42488ea104a64d1f1fe7e6c5bd1e6b -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 36a79d9 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild