$ git clone -n http://8.131.229.236/anolis-os/docbook5-schemas /var/lib/mock/dist-el8-build-8450-1274/root/chroot_tmpdir/scmroot/docbook5-schemas
Cloning into '/var/lib/mock/dist-el8-build-8450-1274/root/chroot_tmpdir/scmroot/docbook5-schemas'...
$ git reset --hard origin/a8
HEAD is now at e9b1958 import docbook5-schemas-5.0-17.el8.src.rpm