>> Also noticed that doing the first replacement always raises an error:
>>
>> Debugger entered--Lisp error: (error "Match data clobbered by buffer
>> modification hooks")
>> replace-match("!" nil nil)
>> replace-match-maybe-edit("!" nil nil nil (672 673 #<buffer char>) nil)
>> perform-replace("7" "!" t t nil nil nil nil nil nil nil)
>> query-replace-regexp("7" "!" nil nil nil nil nil)
>> funcall-interactively(query-replace-regexp "7" "!" nil nil nil nil nil)
>> command-execute(query-replace-regexp)
>
> Do I interpret the code in replace_match correctly: this error doesn't
> even mean the match data has been clobbered - only that modification
> hooks called searching functions? I don't know what the referenced
> search_regs.num_regs exactly contains. But we already seem to ensure
> not to clobber match data.
It fails in emacs-30, but not in emacs-29.
So this is a regression.
