Re: M-x term off-by-one problem in ESC[xM processing?

[Richard Stallman]

    from the `M' case of term-handle-ansi-escape).  In edebug these lines from
    term-delete-lines move point down one too few lines and then insert a
    newline which wipes out "22":

        (term-down (- term-scroll-end save-current-row lines))

What are the values of term-scroll-end, save-current-row, and lines?

What argument is passed to term-down?  It ought to equal
the number of lines from the bottom part of the window
below the deletion; does it?

Does term-down correctly move past the number of lines
specified by its argument?