[PATCH] lib: Invalidate message metadata in _notmuch_message_gen_terms

[David Bremner]

Austin Clements <amdragon at MIT.EDU> writes:

> Previously, we invalidated stored message metadata in
> _notmuch_message_add_term and _notmuch_message_remove_term, but not in
> _notmuch_message_gen_terms.  This doesn't currently result in any bugs
> because of our limited uses of _notmuch_message_gen_terms, but it may
> could cause trouble in the future.

pushed

d