public void setSelectedEntityReference(final DocRef docRef, final boolean decorateDocRef) {
        setSelectedEntityReference(docRef, decorateDocRef, null, null);
    }
@param docRef         The {@link DocRef} to set as the selected value of the dropdown.
                      If docRef does not exist or is not visible to the user, a warning
                      will be displayed but the value will be as passed.
@param decorateDocRef If true, force decorate docRef to ensure it has the correct name.
                      Set to false if you know docRef has an up-to-date name, is a constant,
                      is definitely null, or you don't care.
stroom-core-client/src/main/java/stroom/explorer/client/presenter/DocSelectionBoxPresenter.java