Creates a copy of the current repository item.
A RepositoryItem object (or its descendant) that is a copy of the current item.
This method creates a new repository item of the same type that the current object is, and copies the settings and event handlers of the current item to the new item. The new repository item is returned as the method result.
This method is not intended to create deep copies of repository items. Instead, it creates shallow copies whose functinatily ensures that repository items operate as expected when used for in-place data editing.