See audit log below.
When I iterate over my custom user ield, I can add everyone as watchers. However it's possible someone who is in the POC field explicitly unwatched this ticket before, so I don't want to re-add every POC on field change - just the deltas.
It looks like the smartValue for fieldChange is enclosed in brackets, which messes it up(?). Not sure if I'm doing something wrong here; I've tried passing in the {{fieldChange.to}} object directly (vs. iterating over it), and it seems like the dang nab array notation is confusing it 
