$ git clone -n git+ssh://git@codeup.openanolis.cn/codeup/anolis-os/systemd.git /var/lib/mock/dist-el8-build-25583-14651/root/chroot_tmpdir/scmroot/systemd
Cloning into '/var/lib/mock/dist-el8-build-25583-14651/root/chroot_tmpdir/scmroot/systemd'...
$ git reset --hard origin/a8.2
HEAD is now at 9efcb2a update to systemd-239-31.el8_2.3.src.rpm