$ git clone -n https://src.fedoraproject.org/rpms/nmstate.git /var/lib/mock/f39-build-1563308-37477/root/chroot_tmpdir/scmroot/nmstate
Cloning into '/var/lib/mock/f39-build-1563308-37477/root/chroot_tmpdir/scmroot/nmstate'...
$ git fetch origin ebe8eaac37db46ac0f5712634d55c0a9f7f8cdfc:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/nmstate
 * [new ref]         ebe8eaac37db46ac0f5712634d55c0a9f7f8cdfc -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at ebe8eaa [packit] 2.2.15 upstream release