$ git clone -n http://fedora.riscv.rocks:3000/rpms/kernel.git /var/lib/mock/f40-build-845919-162803/root/chroot_tmpdir/scmroot/kernel
Cloning into '/var/lib/mock/f40-build-845919-162803/root/chroot_tmpdir/scmroot/kernel'...
$ git fetch origin 7e4a5290dce755bed3bcde363b78a7ca4bfd07c0:KOJI_FETCH_HEAD
From http://fedora.riscv.rocks:3000/rpms/kernel
 * [new ref]             7e4a5290dce755bed3bcde363b78a7ca4bfd07c0 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 7e4a5290d Merge remote-tracking branch 'up/f40' into f40-riscv64