Here's a small bug report for you guys:
I manually deleted all of the entries from some tables using the BigDB interface. However, when I ran my app, it pulled the deleted data down, as if the data still existed. I refreshed the BigDB interface, which showed the data as deleted and the tables empty. I then truncated the tables using the Truncate option, and this succeeded in deleting the data: when I loaded the app, the old deleted data was no longer being pulled down.