$ git clone -n https://src.fedoraproject.org/rpms/nmstate.git /var/lib/mock/f39-build-2182479-51239/root/chroot_tmpdir/scmroot/nmstate
Cloning into '/var/lib/mock/f39-build-2182479-51239/root/chroot_tmpdir/scmroot/nmstate'...
$ git fetch origin be6deecee24f42807569dba0d031286aab40aed0:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/nmstate
 * [new ref]         be6deecee24f42807569dba0d031286aab40aed0 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at be6deec Merge branch 'rawhide' into f39