bug#27692: 25.2; Indentation issue with strings in scheme mode

[Alex]

Arun Isaac <arunisaac@systemreboot.net> writes:

> I have the following text in an otherwise empty scheme mode buffer.
>
> ===file-begins-here===
> "Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do
> (eiusmod tempor) incididunt ut labore et dolore (magna aliqua. Ut enim
> ad)"
> ===file-ends-here===
>
> I apply indent-region on the three lines, and they become:
>
> ===file-begins-here===
> "Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do
> (eiusmod tempor) incididunt ut labore et dolore (magna aliqua. Ut enim
>                                                      ad)"
> ===file-ends-here===
>
> The parentheses in the string are wrongly indented as S-expressions.
>
> However, if I have the following text in an otherwise empty scheme mode
> buffer, indentation works correctly.
>
> ===file-begins-here===
> "Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do
> incididunt ut labore et dolore (magna aliqua. Ut enim
> ad)"
> ===file-ends-here===
>
> Note that the only difference between the two text samples is the parentheses
> around "eiusmod tempor". Also note that the buffer text is intended to be a
> scheme string. So, the double quotes are part of the buffer text.
>
> In GNU Emacs 25.2.1 (x86_64-unknown-linux-gnu, GTK+ Version 3.22.15)
>  of 2017-06-23

I can also reproduce this with Emacs 25.2 in emacs-lisp-mode and
lisp-mode.

However, I can't reproduce this on an up-to-date master branch. Can you
confirm if it works correctly for you on the master branch?