$ git clone -n https://src.fedoraproject.org/rpms/kommit.git /var/lib/mock/f38-build-side-42-init-devel-788161-27974/root/chroot_tmpdir/scmroot/kommit
Cloning into '/var/lib/mock/f38-build-side-42-init-devel-788161-27974/root/chroot_tmpdir/scmroot/kommit'...
$ git fetch origin e424035b19aaf6febd491acca07cf3af01344d5f:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/kommit
 * [new ref]         e424035b19aaf6febd491acca07cf3af01344d5f -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at e424035 Initial commit.