bug#27830: 26.0.50; Left fringe gets truncated by a pixel in window not sharing that edge with frame

[martin rudalics]

> It's definitely not for NEWS.  As for PROBLEMS, can one of you suggest
> the wording we'd like to put there?  It's hard for me to make a
> decision with no description of the workaround in sight.

When vertical scroll bars are disabled on GUI frames, Emacs draws a
one-pixel wide border between side-by-side windows.  This border
occupies the first pixel column of the window on the right and may thus
overwrite the leftmost pixels of any glyph displayed there.  If these
pixels convey important information, you can make them visible by
enabling window dividers (from the Options/Show/Hide menu).  Width and
faces of these dividers can be customized appropriately.  Note, however,
that window dividers are also displayed when scroll bars are enabled.

martin