[Rebuild] What is going to happen with object history?

[Andy Allan]

On 9 July 2012 16:14, Jenny <jenny at strangenoises.org> wrote:
> Hi,
>
> Does the redaction bot also look thought the history of previously deleted
> (by hand) objects?

Short answer: yes.

Longer answer - the bot examines every entity that has any historical
version that's in a changeset belonging to a non-agreer (along with a
few agreers who have changesets on the changesets blacklist)

https://github.com/gravitystorm/openstreetmap-license-change/blob/master/run_candidates.rb#L73

It'll then go through all the entities, even the deleted ones, and
figure out which old versions need to be hidden (redacted). There's
one small corner case with deleted node coordinates showing up, but
we've discussed that on another thread and now have a proposed patch
that solves that discrepancy.

The hiding of old versions is what prevents the badly licensed data
from being undeleted.

Cheers,
Andy