bug#18388: 24.4.50; REGRESSION: incompatible change to `replace-match-maybe-edit' (and no doc)

[Juri Linkov]

>> You added argument BACKWARD to this function, and you did not add it as
>> an &optional parameter.  This breaks all existing code that uses the
>> function.  The parameter should be &optional.
>>
>> What's more, you did not even mention the new arg in the doc string.
>
> ping

I wonder what code and how might use this internal function?