Should duplicates based on wNbrs be removed? If set
to 'TRUE', one of the two entries with identical wNbrs is removed, based on
an investigation of background information carried out by the package authors.
In all cases except for one, one of the product sections with duplicate wNbrs
has information about an expiry of the registration, and the other doesn't.
In these cases the registration without expiry is kept, and the expiring
registration is discarded. In the remaining case (wNbr 5945), the second
entry is selected, as it contains more indications which were apparently
intended to be published as well.