> Begin forwarded message:
> 
> From: Yuan Fu <casouri@gmail.com>
> Subject: Re: bug#42590: 27.0.91; Advice error for interactive commands
> Date: July 29, 2020 at 3:21:52 PM GMT-4
> To: Michael Heerdegen <michael_heerdegen@web.de>
> Cc: 42590@debbugs.gnu.org
> 
> 
> 
>> On Jul 29, 2020, at 1:41 PM, Michael Heerdegen <michael_heerdegen@web.de> wrote:
>> 
>> Yuan Fu <casouri@gmail.com> writes:
>> 
>>> To reproduce the issue, evaluate
>>> 
>>> (advice-add 'backward-delete-char-untabify :after 'ignore)
>>> 
>>> and hit backspace (which should call backward-delete-char-untabify), and
>>> an error occurs: apply: Wrong number of arguments: (1 . 2), 0
>> 
>> Had to think about it.  But it's expected I think: `ignore' is
>> interactive, and as documented, its interactive spec overwrites the
>> interactive spec of the original function.  And it doesn't fit.
>> 
>> So everything behaves as documented, it's your specified after advice
>> that causes the problem.  Right?
>> 
>> Michael.
> 
> Thanks. I first advised with another interactive function and found this problem. Ignore is just an example. Once I remove the advice the problem went away. I’ll close this report now. 
> 
> Yuan