$ whoami
root
$ git clone -n http://8.131.229.236/anolis-os/gtk-vnc /var/lib/mock/dist-el8-build-5418-34/root/chroot_tmpdir/scmroot/gtk-vnc
Cloning into '/var/lib/mock/dist-el8-build-5418-34/root/chroot_tmpdir/scmroot/gtk-vnc'...
$ git reset --hard origin/a8
HEAD is now at 6144f7c import gtk-vnc-0.9.0-2.el8.src.rpm