If a user uninstalls and reinstalls the app, they lose all of their followed entities. Urban Airship still has the previous tags associated with the user and will still send push notifications for them.
Sync follows on start up to clear the tags when newly installed.
Looks like this should happen, but multiple entries are being recorded for a single device token (at least on the dev version, there are multiple entries with same token for the same device).
If a user uninstalls and reinstalls the app, they lose all of their followed entities. Urban Airship still has the previous tags associated with the user and will still send push notifications for them.
Sync follows on start up to clear the tags when newly installed.