On 02/03/16 23:17, Simon Razniewski wrote:
As a very (very) contrived example, it may be the case in the future
that legally (because some fictitious court ruling) a "son" classification is reserved for only those who were conceived one year after their parents' marriage because of bizarre tax policy. How then is a prior classification of "compete" to be retroactively interpreted or reconciled?
I don't know the current policy of Wikidata regarding changes of concept definitions, but I guess one would need to do the same for all completeness statements that one would need to do for all regular facts that use the modified concept: Recheck whether they are still valid.
I would actually create a new Property and rename it to a name that was still appropiate (eg. 2005 planet).
Which is still interesting since (a) IThe old property is probably useful per se (albeit the new one would be more desirable). (b) Either the new or the old term is probably a super set of the other.
PS: The opposite can actually be considered true: The several legitimacy acts in England "changed" what was a "son".