This User Story is a consequence of AF-819 review. There were noticed the fact, that the workbench editors extends the class BaseEditor. This class holds some content of the type T. Next, the BaseEditor class decides if the editor is dirty (changes needs to be saved) according to the T.hashCode(). It was found that different implementations of the BaseEditor hold content T that does not override the hashCode method. Content T without implemented hashCode appropriately can cause unexpected behavior during handling editor dirty state.