$ git clone -n https://src.fedoraproject.org/rpms/nco.git /var/lib/mock/f40-build-803458-144269/root/chroot_tmpdir/scmroot/nco
Cloning into '/var/lib/mock/f40-build-803458-144269/root/chroot_tmpdir/scmroot/nco'...
$ git fetch origin ae4c63e24100293676183ef5f48a0cd97fdc67ef:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/nco
 * [new ref]         ae4c63e24100293676183ef5f48a0cd97fdc67ef -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at ae4c63e Update to 5.2.2