Add extra attributes in serialized schemas
Add extra attributes in serialized schemas

DirkHoffmann/indico,ThiefMaster/indico,DirkHoffmann/indico,indico/indico,pferreir/indico,pferreir/indico,indico/indico,indico/indico,pferreir/indico,ThiefMaster/indico,ThiefMaster/indico,pferreir/indico,DirkHoffmann/indico,ThiefMaster/indico,DirkHoffmann/indico,indico/indico