$ whoami
root
$ git clone -n http://8.131.229.236/anolis-os/gnome-user-docs /var/lib/mock/dist-el8-build-2474-28/root/chroot_tmpdir/scmroot/gnome-user-docs
Cloning into '/var/lib/mock/dist-el8-build-2474-28/root/chroot_tmpdir/scmroot/gnome-user-docs'...
$ git reset --hard origin/a8
HEAD is now at 34982ab import gnome-user-docs-3.28.2-1.el8.src.rpm