Eli Zaretskii <eliz@gnu.org> writes:

>> For example, indent-region in a buffer containing:
>> 
>> )
>> (+ 2
>>    3)
>> 
>> gives
>> 
>> Debugger entered--Lisp error: (wrong-type-argument consp nil)

> I'd rather go back to the old code, and let the new Lisp indent
> functions mature on master.  Alternatively, we could leave this
> problem alone and fix it later.  But making all these changes at the
> 95th minute before Emacs 26 is released makes very little sense to me.

Okay to push just the error avoidance part to emacs-26 now?  (I'm not
really sure how useful the
lisp-ppss-open-paren-in-column-0-is-defun-start thing would be anyway,
and we haven't seen any other complaints about this)