OSX: bad access on Person
Issue generated from Tuleap's migration script. Originally submitted by: Alexandre Lision (alision)
A bad access can occur when drawing photo associated to an invalid person in PersonLinkerVC or BrokerVC. These two controllers are used when adding a uri to a contact and adding someone in a call.
It is due to the caching used for persons photos, trying to build an index before doing any validation on the actual person
Change introduced in: afa56dcf