WCMS-88 accepted students will now be omitted from syncs if their affili...

...ation changes don't necessitate a synculificationary maneuver
The only problem I can think of is that any changes to a user record between the time their affiliation goes away and they get another whitelisted affiliation (if that were to ever happen) will not get saved, because all those changes will get skipped. And since they still have a person record, they won't get reinitialized from trogdir. Though maybe this would never really happen and isn't a problem, I don't know.