$ git clone -n https://src.fedoraproject.org/rpms/nmstate.git /var/lib/mock/f45-build-39735-751/root/chroot_tmpdir/scmroot/nmstate
Cloning into '/var/lib/mock/f45-build-39735-751/root/chroot_tmpdir/scmroot/nmstate'...
$ git fetch origin b2cc4eef0f7315f81ffc9001722bf4b0c6da56d1:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/nmstate
 * [new ref]         b2cc4eef0f7315f81ffc9001722bf4b0c6da56d1 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at b2cc4ee Update to 2.2.61 upstream release