bug#17210: 24.3.50; help mode [back] link to a C-h b keybind listing fails with message "Current buffer is not in Help mode"

[martin rudalics]

>> My first conclusion was wrong.  "back" gets me the right buffer but it
>> gives me different contents.
>
> That is a different problem, and AFAIK it is not new: try the same in
> Emacs from before your pixelwise resize changes, and I think you will
> see the same behavior.

I know.

> I think it simply describes bindings in another buffer (*Help* instead
> of *scratch*).

That's what I thought.  But the same buffer (e.g. *scratch*) is passed
to `describe-buffer-bindings' in both cases.  I'm sure that following
the links forward and backward is responsible but why has that such
drastic consequences?

martin