bug#19710: 24.4.51; Isearch is broken in comints which relly on regexp

[Juri Linkov]

>> > Relatedly, comint-bol inside multiline output regions is broken.
>> >
>> > In shell buffer:
>> >
>> >    $ locate pwd
>> >
>> > then go to a previous line and M-x comint-bol. It will jump all the way
>> > back to comint-prompt-regexp.
>>
>> The following patch for the emacs-24 branch should fix this regression.
>
> If this a regression wrt 24.4?

Yes, it's a regression wrt 24.4 introduced a month ago.