$ git clone -n https://src.fedoraproject.org/rpms/helm.git /var/lib/mock/f41-build-848173-164387/root/chroot_tmpdir/scmroot/helm
Cloning into '/var/lib/mock/f41-build-848173-164387/root/chroot_tmpdir/scmroot/helm'...
$ git fetch origin 48c66e806d1802e96e98cf523bce022a12948882:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/helm
 * [new ref]         48c66e806d1802e96e98cf523bce022a12948882 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 48c66e8 Update to 3.15.4 - Closes rhbz#2305288