$ whoami
root
$ git clone -n http://8.131.229.236/anolis-os/appstream-data /var/lib/mock/dist-el8-build-5431-34/root/chroot_tmpdir/scmroot/appstream-data
Cloning into '/var/lib/mock/dist-el8-build-5431-34/root/chroot_tmpdir/scmroot/appstream-data'...
$ git reset --hard origin/a8
HEAD is now at 78a192a import appstream-data-8-20191129.el8.src.rpm