[horde] ActiveSync does not work after update to 2.0.0beta4

[Samuel Wolf]

2012/10/14 Samuel Wolf <samuelwolf85 at googlemail.com>:
> My profile work fine on my phone, my wife's profile does not work on
> the same smartphone.

I found something, there was one difference between my wife's profile
and my profil, she has imap folders with "ä".
So I add a imap folder (äbc) in my profile and activesync stop immediately:

2012-10-14T14:51:35+02:00 DEBUG:
Horde_ActiveSync_Driver_Horde::getServerChanges(INBOX, 0, 1350219095,
1349959895, 0)
2012-10-14T14:51:35+02:00 ERR:
[..]
2012-10-14T14:51:39+02:00 DEBUG:
Horde_ActiveSync_Driver_Horde::getServerChanges(INBOX, 0, 1350219099,
0, 1)
2012-10-14T14:51:39+02:00 ERR: imp is not activated.
2012-10-14T14:51:39+02:00 DEBUG: [2001] Found 0 message changes in INBOX.

Delete the imap folder in my profile does not help, profile does not
work any more.
I think it work after new installation of horde because "Use IMAP
mailbox subscriptions?" was disabled by default.