Re: backward-up-list

[Richard Stallman]

    That's as expected. But

        (setq bar (foo))
                      ^
    C-M-u -->    

        (setq bar (foo))
                  ^

    Here it jumped just from the closing to the opening
    parenthesis. That's not `up' in my understanding.

Remember point is between two characters.  You started inside
that group, so C-M-u moved to just before (and outside) the group.