Venezuela is electing a new president in about a week. I went ahead and switched the Italian article to use the Wikidata property so we might be able to capture a good example there.

> Date: Mon, 8 Apr 2013 16:24:49 +0200
> From: psychoslave@culture-libre.org
> To: wikidata-l@lists.wikimedia.org; wikitech-l@lists.wikimedia.org
> Subject: Re: [Wikidata-l] Page history and properties
>
> Le 2013-04-08 15:54, Luca Martinelli a écrit :
> > 2013/4/8 Mathieu Stumpf <psychoslave@culture-libre.org>:
> >> Le 2013-04-08 15:02, Luca Martinelli a écrit :
> >>
> >>> What I tried to say is: we don't mind if we go back in a page
> >>> history
> >>> and find a red link to a template, nobody cares, because we all
> >>> know
> >>> that a template has been deleted/substituted *for a reason* - that
> >>> we
> >>> even discussed for a VERY long time. What we DO care is that the
> >>> article has *right now* the correct data - and this will be easier
> >>> with Wikidata. I wouldn't have been its main sponsor in it.wp, if
> >>> it
> >>> wasn't for this.
> >>
> >>
> >> When I look in the history, I want to see the data which where used
> >> then :
> >> there are the correct data of this history context. The "current"
> >> page may
> >> be automaticaly edited to match the current wikidata entries it
> >> refers to,
> >> but this changes should appears in the history, just like it's done
> >> with
> >> bots.
> >>
> >> So, no, I don't care that the last revision of an article uses the
> >> "correct
> >> data", because "correct data" is an ambiguous term. What I hope to
> >> see, is
> >> that the last revision article uses the last revision of the
> >> wikidata
> >> entries it needs; or at least the value it had the last time that a
> >> commit
> >> was made to update this value. And when I look in the history, I
> >> want to see
> >> the value that the article used to use then. Otherwise it would be
> >> history
> >> counterfeiting.
> >
> > Ok, I give up. Ask the devs to solve this problem, open a bug about
> > it, whatever.
>
>
> Sorry, I didn't want to upset anyone.
>
> > For the records I *do not* see as a problem as of now, since IMVHO
> > we've got other priorities to deal with - first of all: filling the
> > items with statements, and possibly completing the statements with
> > sources, in order to make the data on Wikidata usable on Wikipedia.
>
> Ok, do you mean making a bug report on https://bugzilla.wikimedia.org/
> ?
> If so I would welcome any advise to make a bug report as relevant as
> possible.
> To my mind it would be realy like put the cart before the horse if we
> began to feed articles with wikidata before we have a proper history
> management. I understand the willing to be able to use this bright new
> tool. I **do** share your exitement here. But if you take a step
> backward, there's no urge to go into a situation possibly harmful for
> the credibility of our "will to be reliable through transparency".
>
> So, before I make a bug report, can anyone confirm me that as it is
> today, wikidata invokation in previous revision of a page will fail to
> provide the relevant data, that is, the data which was returned at the
> time the revision was in use. More generaly, could developers/admins
> confirm me that data update would not appear in the article history.
> Because it seems to me that I saw such entries with the interlang
> migration, so until now I supposed that any change in wikidata would
> rise a new revision with a commit message in each article using this
> data.
>
>
> Kind regards,
> mathieu
>
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