bug#20592: the `display' property messes the `face' properties after `concat'

[Lars Ingebrigtsen]

Eli Zaretskii <eliz@gnu.org> writes:

> It does comply, AFAIU: you produced a list, not a string.  Each string
> in the list still needs to have a single face on all of its
> characters.

So I don't think there's anything to fix here -- the text property
limitation on mode line strings wasn't documented before, but it's
documented in Emacs 28.

So I'm closing this bug report.

-- 
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   bloggy blog: http://lars.ingebrigtsen.no