$ whoami
root
$ git clone -n http://8.131.229.236/anolis-os/gnome-boxes /var/lib/mock/dist-el8-build-6855-241/root/chroot_tmpdir/scmroot/gnome-boxes
Cloning into '/var/lib/mock/dist-el8-build-6855-241/root/chroot_tmpdir/scmroot/gnome-boxes'...
$ git reset --hard origin/a8
HEAD is now at 6a7bfd0 import gnome-boxes-3.28.5-8.el8.src.rpm