Eli Zaretskii wrote:
> Also, what does the following display in both "good" and "bad"
> configurations in the first frame displayed by "emacs -Q" that has the
> original, unaltered by 1-pixel changes, size?
> 
>   M-: (pos-visible-in-window-p t nil t) RET
> 
> Please invoke this after "C-x d" in each case.

In the *good* configuration: (0 594 0 17 1 33)
In the *bad* configuration: (0 594 0 17 1 33)

-- 
 ,= ,-_-. =.  Bruno Félix Rezende Ribeiro (oitofelix) [0x28D618AF]
((_/)o o(\_)) There is no system but GNU;
 `-'(. .)`-'  GNU Linux-Libre is one of its official kernels;
     \_/      All software must be free as in freedom;