CFT: fix OfflineIMAP lockup in single-threaded mode

[Eygene Ryabinkin]

Wed, Feb 06, 2013 at 10:24:05AM +0100, X Ryl wrote:
>  I agree with all the point you raised.
> The patch you've written is clear to me, and I think it's the best solution
> (concerning singlethread + suggestthread).
> Fill free to commit it (unless anyone objects).
> In a later patch we could probably remove suggestthread (if we have 2
> class, single & multi), so your current patch would still be correct.

Fine, thanks a lot!
-- 
rea