bug#57334: 28.1; Fix wdired with (dired '(dir f1 f2 ...))

[Lars Ingebrigtsen]

Thierry Volpiatto <thievol@posteo.net> writes:

> The tests succeed with following patch (avoid setting dired-directory to
> nil).

Michael noted that there's more fundamental problems in this area, so
perhaps more work is needed later, but your change makes sense anyway, I
think, so I've now pushed it to Emacs 29.