$ git clone -n https://src.fedoraproject.org/rpms/toolbox.git /var/lib/mock/f38-build-side-42-init-devel-1029756-29708/root/chroot_tmpdir/scmroot/toolbox
Cloning into '/var/lib/mock/f38-build-side-42-init-devel-1029756-29708/root/chroot_tmpdir/scmroot/toolbox'...
$ git fetch origin 2f7d5494941ab0c7b31f6124307f5cf3d380cc9e:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/toolbox
 * [new ref]         2f7d5494941ab0c7b31f6124307f5cf3d380cc9e -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 2f7d549 Don't use podman(1) when generating the completions