$ git clone -n http://fedora.riscv.rocks:3000/rpms/root.git /var/lib/mock/f42-build-864624-172497/root/chroot_tmpdir/scmroot/root
Cloning into '/var/lib/mock/f42-build-864624-172497/root/chroot_tmpdir/scmroot/root'...
$ git fetch origin e88c5f2d5596d07de5e333dd3783b8fdb770e58d:KOJI_FETCH_HEAD
From http://fedora.riscv.rocks:3000/rpms/root
 * [new ref]         e88c5f2d5596d07de5e333dd3783b8fdb770e58d -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at e88c5f2 Skip tutorial-geom-na49 (timeout, pioneer)