bug#43715: 28.0.50; Duplicate results in project-find-regexp

[Lars Ingebrigtsen]

Pankaj Jangid <pankaj@codeisgreat.org> writes:

> I was search a regular expression 'mail' in project ~/.emacs.d. This is
> part of the result,
>
> /Users/pankaj/.emacs.d/lisp/init-email.el
>  1: ;;; init-email.el --- configure Email -*- lexical-binding: t -*-
>  1: ;;; init-email.el --- configure Email -*- lexical-binding: t -*-
> 17: ;; (add-hook 'mail-citation-hook 'sc-cite-original)
> 34: ;;   "Fetch email addresses from the email headers."
> 34: ;;   "Fetch email addresses from the email headers."
> 42: (provide 'init-email)
> 43: ;;; init-email.el ends here
>
> Notice the duplicate results from line number 1 and 34.

It looks like when there are two matches in the same line, the line is
listed twice?  So I tried the same command on the Emacs tree (with
"regexp" as the regexp) and, indeed:

 2215:  that debugger code that needs to do regexp match won't break
 2438:  Fix regexp-opt documentation (bug #17862)
 2440:  * lisp/emacs-lisp/regexp-opt.el (regexp-opt):
 2440:  * lisp/emacs-lisp/regexp-opt.el (regexp-opt):

So it this a feature or a bug?

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