$ git clone -n https://src.fedoraproject.org/rpms/pdc-client.git /var/lib/mock/f40-build-2248046-53936/root/chroot_tmpdir/scmroot/pdc-client
Cloning into '/var/lib/mock/f40-build-2248046-53936/root/chroot_tmpdir/scmroot/pdc-client'...
$ git fetch origin a757611e784e9690b66ffb284d20a58e0da576e4:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/pdc-client
 * [new ref]         a757611e784e9690b66ffb284d20a58e0da576e4 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at a757611 Remove unused python3-mock dependency