Subject: Re: bug#58784: 28.2; project-buffers incorrect under let-bound default-directory

From: Juri Linkov <[email-masked]>
Date: Mon, 21 Nov 2022 20:24:31 +0200

> So I just pushed that fix to master.

Unfortunately, this change broke 'C-x p p g':

  @@ -1667,9 +1667,10 @@ project-switch-project
  -    (let ((default-directory dir)
  -          (project-current-inhibit-prompt t))
  -      (call-interactively command))))
  +    (with-temp-buffer
  +      (let ((default-directory dir)
  +            (project-current-inhibit-prompt t))
  +        (call-interactively command)))))

Because 'C-x p p' switches to a temporary buffer, then
'g' calls 'project-find-regexp' and 'project--read-regexp'.
But (thing-at-point 'symbol t) can't get a symbol at point
in the empty temporary buffer.