$ git clone -n http://fedora.riscv.rocks:3000/rpms/fedora-repos.git /var/lib/mock/f42-build-51-17/root/chroot_tmpdir/scmroot/fedora-repos
Cloning into '/var/lib/mock/f42-build-51-17/root/chroot_tmpdir/scmroot/fedora-repos'...
$ git fetch origin c662c03d3a52ab02f10cdda7c45cb12eb21a18ec:KOJI_FETCH_HEAD
From http://fedora.riscv.rocks:3000/rpms/fedora-repos
 * [new ref]         c662c03d3a52ab02f10cdda7c45cb12eb21a18ec -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at c662c03 Switch to new Fedora RISC-V Koji instance