Returns null if the Obj has not been modified. Otherwise, new is returned if the Obj has been created in the working copy, edited if it existed already and has been touched, or deleted if it has been deleted.
Returns the modification an Obj has undergone.
Returns null if the Obj has not been modified. Otherwise, new is returned if the Obj has been created in the working copy, edited if it existed already and has been touched, or deleted if it has been deleted.
Remarks
Always returns null for an Obj in the published content since it cannot be modified.
Returns
String or null