bug#65069: ispell-region does not preserve the region

[Juri Linkov]

>> Thanks for the prompt and thorough response, Eli.  My use case is that
>> I store multiple blog posts in a single file.  When I compose one,
>> I select it, run ispell-region, then copy-paste the corrected text into
>> a webpage.  Ispell changing the region is therefore unhelpful to me, but
>> if that’s an uncommon usage pattern, I can just defadvice it myself to
>> get the old behavior back — no need for another user option.
>
> OK, thanks.  I'll leave the bug open so that others who'd like to have
> such an option could chime in.  If there's enough demand, I think we
> should add it.

It would be useful to have two possible values: to leave the
original region selected, or to deactivate the region afterwards
(for example, like 'indent-rigidly' does).