Add an option to search the repository by "Assign to" cataloger / operator
Currently there is no way to know which records are assigned to a certain user except for the "assigned to" note indication. We need a way to retrieve the records that were assigned in order to restore them back to the users' MDE, in case they dissappeard from the opened records pane. See full usecase in SFC#00957311.
If the assigner reopens the record he assigned to fix some field etc., the record disappears from the MDE of the cataloger that was assigned the record. This makes the function very unreliable.