$ git clone -n https://gitee.com/guost123/systemd.git /var/lib/mock/dist-an23.3-build-431889-73058/root/chroot_tmpdir/scmroot/systemd
Cloning into '/var/lib/mock/dist-an23.3-build-431889-73058/root/chroot_tmpdir/scmroot/systemd'...
$ git fetch origin af0a968ebbe40e45b36cca8edcaaa266a7ae1027:KOJI_FETCH_HEAD
From https://gitee.com/guost123/systemd
 * [new ref]         af0a968ebbe40e45b36cca8edcaaa266a7ae1027 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at af0a968 adapt for riscv64 build