$ git clone -n https://src.fedoraproject.org/rpms/lxtask.git /var/lib/mock/f41-build-side-1-2658242-28541/root/chroot_tmpdir/scmroot/lxtask
Cloning into '/var/lib/mock/f41-build-side-1-2658242-28541/root/chroot_tmpdir/scmroot/lxtask'...
$ git fetch origin 037f7a5011ea3b25932abe6f4275937a68676df5:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/lxtask
 * [new ref]         037f7a5011ea3b25932abe6f4275937a68676df5 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 037f7a5 Update to the latest git