[horde] Importing Contact Does Not Update Contact List(s)

[bin at crewecleanteam.co.uk]

Hello,

I have noticed that when I import one or more contacts into an address  
book, the relevant contact lists are not updated.  Is there a way of  
exporting/importing contact details that maintains the integrity of  
the contact lists?

I am using Horde 5.1.1.  The sharing of address books has been  
suppressed in my hosted version (because of fear of a security  
breach).  I don't know if this is relevant or not.

Many thanks,

Dave McDonald