On Sat, Nov 21 2015, Bart Bunting <bart.bunting@ursys.com.au> wrote:

> Hi there,
>
> I've accidentally removed a bunch of tags in error and was dreaming
> there may be a way to fix it :).
>
> Is there any way to restore tags as they were at a certain point in
> time?

some examination of lastmod: might help ?

first run notmuch count --lastmod

Then experiment with  `notmuch search lastmod:<num>` with "suitable"
values of num to figure out of the messages that have been affected...

Tomi

> Even if not now after i've done it, is there anything that could have been
> done at the time to fix the error?

probably not.