Build changes from getattr instead of passed value
Build changes from getattr instead of passed value

This makes populate_from_dict correctly build the changes for properties
where getattr returns something different than what setattr sets.

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