Summary: As suggested in the previous diff, I change the way to store row values. Now, (kinda) raw values are stored instead of processed values that can be used directly for `ManagedTable`. This simplifies logic in detail sidebar. I'm not sure what the effect to performance. Reviewed By: mweststrate Differential Revision: D21621896 fbshipit-source-id: 472be3caa955ca32f876f81095af21e9c17cb159