$ git clone -n https://src.fedoraproject.org/rpms/ignition.git /var/lib/mock/f39-build-1790966-41742/root/chroot_tmpdir/scmroot/ignition
Cloning into '/var/lib/mock/f39-build-1790966-41742/root/chroot_tmpdir/scmroot/ignition'...
$ git fetch origin 4e94fa6ca44c15289feb06c5cd2ffe6c88365209:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ignition
 * [new ref]         4e94fa6ca44c15289feb06c5cd2ffe6c88365209 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 4e94fa6 Update to 2.17.0