$ git clone -n https://gitee.com/renbo02/gnome-boxes.git /var/lib/mock/dist-an8.7-build-174116-59027/root/chroot_tmpdir/scmroot/gnome-boxes
Cloning into '/var/lib/mock/dist-an8.7-build-174116-59027/root/chroot_tmpdir/scmroot/gnome-boxes'...
$ git reset --hard origin/a8
HEAD is now at 5be08f2 rebuild