$ git clone -n http://fedora.riscv.rocks:3000/rpms/samba.git /var/lib/mock/f42-build-863186-171485/root/chroot_tmpdir/scmroot/samba
Cloning into '/var/lib/mock/f42-build-863186-171485/root/chroot_tmpdir/scmroot/samba'...
$ git fetch origin d6b236c8542e3b951029fd23d0ad955704cb7a22:KOJI_FETCH_HEAD
From http://fedora.riscv.rocks:3000/rpms/samba
 * [new ref]         d6b236c8542e3b951029fd23d0ad955704cb7a22 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at d6b236c Fix NVR for riscv64