Comment 3 for bug 531302

While QA'ing I noticed that the checkboxes list does not go away if there are no restricted architectures. This is a bug, though we're unlikely to ever run into it since ARM is going to be marked as restricted. It's also just cosmetic. I'm not sure where to best fix this. Either the form should not include the enabled_restricted_architectures field at all if there are no restricted architectures, or the LabeledMultiCheckBox widget should hide itself if its vocabulary is empty.