changed a single added, removed, changed to [collection]_added, [collection]_removed, and [collection]_changed
changed a single added, removed, changed to [collection]_added, [collection]_removed, and [collection]_changed

emmerge/ObjectiveDDP,gumpyoung/ObjectiveDDP,hiddenswitch/ObjectiveDDP,yhyuan/ObjectiveDDP,lookback/ObjectiveDDP,gumpyoung/ObjectiveDDP,gumpyoung/ObjectiveDDP,gumpyoung/ObjectiveDDP,emmerge/ObjectiveDDP,yhyuan/ObjectiveDDP,hiddenswitch/ObjectiveDDP,boundsj/ObjectiveDDP,boundsj/ObjectiveDDP,lookback/ObjectiveDDP,yhyuan/ObjectiveDDP,emmerge/ObjectiveDDP,boundsj/ObjectiveDDP,hiddenswitch/ObjectiveDDP,emmerge/ObjectiveDDP,yhyuan/ObjectiveDDP,lookback/ObjectiveDDP,hiddenswitch/ObjectiveDDP,boundsj/ObjectiveDDP,lookback/ObjectiveDDP