[horde] Horde takes over other appointments

[Michael Brohl]

Hi,

we are using the latest Horde Webmail suite with different clients (Mac 
Mail and Thunderbird).
If we receive an appointment invitation from outside and accept it, 
Horde seems to "take over" the appointment as if it was created by 
ourselves. Additionally, all other invitees get an email as if it is the 
first invitation.

We have tried to find a solution but couldn't find a hint. Any help 
would be much appreciated!

Thanks and regards,

Michael