$ git clone -n https://src.fedoraproject.org/rpms/helm.git /var/lib/mock/f41-build-858599-168464/root/chroot_tmpdir/scmroot/helm
Cloning into '/var/lib/mock/f41-build-858599-168464/root/chroot_tmpdir/scmroot/helm'...
$ git fetch origin 64db18759c5438f49ab7445832c1e40b9ec13dff:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/helm
 * [new ref]         64db18759c5438f49ab7445832c1e40b9ec13dff -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 64db187 Update to 3.16.2 - Closes rhbz#2318273