[Owncloud] sharing CAL not works

[Antonello Carlomagno]

hi

there are 2 groups ... Group A and Group B

in admin panel if I select  "Allow users to share with anyone" .... all 
users of all groups they can share own calendar...

but If I select "Allow users to only share with users in their groups"  
... the users of Group A or B not see any users of their group

where I wrong ?

Antonello