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* lisp/emacs-lisp/range.el (range-add-list): Don't mutate argument.

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It's clear from the doc strings that this function isn't meant
to mutate its arguments.
This commit is contained in:
Mattias Engdegård 2025-10-30 10:58:50 +01:00
parent 676ee88eea
commit 8da4072344
1 changed files with 1 additions and 0 deletions
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lisp/emacs-lisp/range.el
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@ -198,6 +198,7 @@ these ranges."
Note: LIST has to be sorted over `<'."
(if (not ranges)
(range-compress-list list)
(setq ranges (copy-tree ranges))
(setq list (copy-sequence list))
(unless (listp (cdr ranges))
(setq ranges (list ranges)))