$ whoami
root
$ git clone -n http://8.131.229.236/anolis-os/emacs /var/lib/mock/dist-el8-build-6042-70/root/chroot_tmpdir/scmroot/emacs
Cloning into '/var/lib/mock/dist-el8-build-6042-70/root/chroot_tmpdir/scmroot/emacs'...
$ git reset --hard origin/a8
HEAD is now at bd3c560 import emacs-26.1-5.el8.src.rpm