[imp] Incorrect result about email search function

[James]

Hello:

  I'm a Chinese user of horde.When i put Chinese words into the search
field(Subject,from,to...) ,sometimes the result is  "No messages matched your
search" or is incorrect. But the same Chinese words in my previous
Horde+imp(Horde 2.2.x + IMP 3.2.x) is correct or when i use English the result
is correct too.

I use Horde 3.1.1 and IMP H3 (4.1.1) .

Do any other non-english users have the same result?

Thanks.