When a reference field rendering as a picklist with a "None" option the field is saved even though no option should be chosen. This seems to be a bug since updating to Brooklyn. Has anyone experienced this issue?
Tami, what value is saved into the field when the "None" option is selected? I'm not seeing this issue but it might be because I don't know how to reproduce it. Are you able to reproduce the issue on a standalone page with standard objects so anyone can see if they have the same issue?
The reference field "Override Billing" looks up to a customer address object. It renders as a picklist showing all the address associated with a given Account. By default "--None--" is displayed (meaning nothing is selected). If I save the model with the default option a new blank field will be created in the customer address object. This only started after the Brooklyn update.