$ git clone -n http://fedora.riscv.rocks:3000/rpms/systemd.git /var/lib/mock/f38-build-709063-92692/root/chroot_tmpdir/scmroot/systemd
Cloning into '/var/lib/mock/f38-build-709063-92692/root/chroot_tmpdir/scmroot/systemd'...
$ git fetch origin b12c83490f481743607a43a7cf36ed2767967374:KOJI_FETCH_HEAD
From http://fedora.riscv.rocks:3000/rpms/systemd
 * [new ref]         b12c83490f481743607a43a7cf36ed2767967374 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at b12c834 Disable LTO (GCC 13; binutils 2.40); Test build