$ git clone -n https://src.fedoraproject.org/rpms/lxi-tools.git /var/lib/mock/f39-build-1466110-33646/root/chroot_tmpdir/scmroot/lxi-tools
Cloning into '/var/lib/mock/f39-build-1466110-33646/root/chroot_tmpdir/scmroot/lxi-tools'...
$ git fetch origin b670e2db453191aed4bc4f881a2f1b91e0c3d7b2:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/lxi-tools
 * [new ref]         b670e2db453191aed4bc4f881a2f1b91e0c3d7b2 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at b670e2d Upgrade to 2.7 (#2233001)