Re: viper-mode undo bug introduced between Nov 10 and Nov 14

[Jim Meyering <jim@meyering.net>]

On Fri, Apr 15, 2016 at 12:19 AM, Eli Zaretskii <eliz@gnu.org> wrote:
>> From: Jim Meyering <jim@meyering.net>
>> Date: Thu, 14 Apr 2016 13:46:32 -0700
>>
>> Hi, I noticed that "undo" in viper-mode stopped working properly (in
>> built-from-git master emacs) back in November and filed a bug for it.
>>
>> https://bugs.gnu.org/22295
>>
>> I still haven't found time to delve into it, so am posting here in the
>> hopes that someone else will get to it.
>
> Phillip, could you please take a look at that bug?

Thanks for asking for help.
This is still a problem. However, now there is an additional bug in viper mode:

When I run e.g., "!!" to tell it to replace the text of the current
line with the output of some shell command, I see the usual "!" prompt
asking me for that command in the minibuffer. Let's say I type "cat"
then enter. So far so good.

However, if I type "!!" again, this time I see "!(default cat) ", and
let's say I want to accept that default and hit return. Then emacs
attempts to run the command "(default cat)". Oops. Even if I type
something, it is only appended, so if I type "cat" again, emacs runs
"(default cat) cat".

This appears to have been introduced some time on or before May 6th.