$ git clone -n https://gitee.com/gcdota930915/gnome-session.git /var/lib/mock/dist-an8.7-build-172574-58975/root/chroot_tmpdir/scmroot/gnome-session
Cloning into '/var/lib/mock/dist-an8.7-build-172574-58975/root/chroot_tmpdir/scmroot/gnome-session'...
$ git reset --hard origin/a8
HEAD is now at f265a27 update to gnome-session-40.1.1