$ whoami
root
$ git clone -n http://8.131.229.236/anolis-os/filesystem /var/lib/mock/dist-el8-build-249-27/root/chroot_tmpdir/scmroot/filesystem
Cloning into '/var/lib/mock/dist-el8-build-249-27/root/chroot_tmpdir/scmroot/filesystem'...
$ git reset --hard origin/a8
HEAD is now at 67256c7 import filesystem-3.8-2.el8.src.rpm