inwit <inwit@sindominio.net> writes:

> On 2022-01-26 16:40, David Bremner wrote:
>> I guess for undo you will need to save the query as well?
>> 
>> Even that will not be perfect (since the messages matching the query
>> could change behind emacs back), but close enough for most interactive
>> use, maybe?
>
> I was thinking about saving the IDs of the messages affected by the 
> change, but I still don't know how would I go about that or if it's 
> sensible.

Absent some new feature in notmuch tag, you'd need to do another query
to get the set of message-ids. That set would still be subject to change
between that query and tagging operation, so that is a bit
unsatisfactory. Also the set of message-ids could be impractically
large.
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