On Fri, 26 Nov 2010 11:13:23 +0100, Sebastian Spaeth <Sebastian@SSpaeth.de> wrote:
> OK, here is a problematic email. It shows up as "Inbox 1" in my
> notmuch-hello and when I go into the corresponding saved search the list
> is empty. The "From" header contains some invalid XML entity encoding I
> guess and that confuses things.

It's containing a semi-colon that does it, IIRC.

> Worth fixing?

I guess.  I talked to cworth on IRC about this a while ago, and I think
the fix is using something more JSON-ish in the search results view for
emacs.

Cheers,
mwh