It fixes a bug introduced by commit
'query-replace-regexp undo: Update next-replacement after undo'
(
30c4f35a6fc8a6507930923766c3126ac1c2063f)
See https://lists.gnu.org/archive/html/emacs-devel/2019-09/msg00364.html
* lisp/replace.el(perform-replace): Rename variable
to next-replacement-replaced.
search-string (nth (if replaced 4 3) elt)
last-replacement (nth (if replaced 3 4) elt)
search-string-replaced search-string
- last-replacement-replaced last-replacement
+ next-replacement-replaced last-replacement
last-was-act-and-show nil)
(when (and (= stack-idx stack-len)