- Fixes an issue where a call to coerce a TimeWithZone
  object using to_time would reassert it based on the
  local system time.  This revolves around a change here:
  https://github.com/rails/rails/commit/b79adc4323ff289aed3f5787fdfbb9542aa4f89f#diff-3497a506c921a3a3e40fd517e92e4fe3L317

  Based on the required use here (for breaking out datetime
  columns) we don't need to coerce the timewithzone object
  again with to_time.  All datetime columns in rails are
  timewithzone so we can just leave it alone in this case.