Follow-up Comment #5, bug #57448 (project groff):
> If the kerning in front of the hyphen is removed (with '\&'),
> the expected result is there.
Well, not if the expected result is for kerning and line-breaking to
simultaneously work. :)
If one needs a workaround, a better one is to add a zero-width breakpoint (\:)
after the hyphen.
But the greater trick is figuring out all the places such a \: is needed. In
groff's default font set -- with relatively few kern pairs that have a hyphen
as the second character -- the problem is limited in scope. But for installed
fonts with a larger set of kern pairs, the bug could crop up in unexpected
places. (And there is nothing magical about two characters: any number of
kerned characters before a hyphen triggers the bug.)
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