$ git clone -n https://github.com/fedora-riscv/samba.git /var/lib/mock/f38-build-side-42-init-devel-612130-26277/root/chroot_tmpdir/scmroot/samba
Cloning into '/var/lib/mock/f38-build-side-42-init-devel-612130-26277/root/chroot_tmpdir/scmroot/samba'...
$ git fetch origin b494f4524ec6a766bb6b4877f7cda57c5e250e80:KOJI_FETCH_HEAD
From https://github.com/fedora-riscv/samba
 * [new ref]         b494f4524ec6a766bb6b4877f7cda57c5e250e80 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at b494f45 Enable more features for riscv64.