On Tue, 18 Aug 2009 20:48:03 +0300, andrzej zaborowski balr...@gmail.com
wrote:
2009/8/18 Peter Miller peter.mil...@itoworld.com:
On 18 Aug 2009, at 14:57, Teemu Koskinen wrote:
Could somebody please revert this changeset:
http://www.openstreetmap.org/browse/changeset/2168210
The moving of the nodes across the Atlantic is obviously wrong.
Do check out this page for guidance and the email address for requests
to the data working group.
http://wiki.openstreetmap.org/wiki/Vandalism
I don't think this case was deliberate vandalism, other edits from the
user seems to be good.
Note that I have been working on this page today and have added a
section for 'speedy response' in cases where a failure to respond
within hours could lead to highly visible damage to the rendered maps
or changes in sensitive areas (for example Washington - particularly
sensitive given the support and visibility given to OSM by the
Whitehouse).
Note that most incorrect edits spanning more than a few nodes need a
speedy response because soon people start making edits on top of the
unwanted changeset and reverting it becomes more difficult.
What we need, as has been previously discussed on the list, is a similar
mechanism that wikipedia has that will revert an edit easily, maybe even
from the website ui.
Since I had the setup for this ready, I reverted the changeset 2168210
in my changeset
http://www.openstreetmap.org/browse/changeset/2192016
but I had to make a couple of edits before uploading it:
* xybot had helpfully made an edit on top of some of the nodes
removing a spurious tag and causing conflicts.
* I did not revert the creation of node 469327157 (a parking) which
seems genuine.
* Something really strange: node
http://www.openstreetmap.org/browse/node/270798013/history is edited
two times inside the same changesets and revert.pl didn't deal
correctly with this.
There still seems to be some problem, the way
http://www.openstreetmap.org/browse/way/39175980 still goes across the
Atlantic, but it looks different than before.
Personally I think we need a huge effort to be ready for damaging
vandalism and much better tools to spot potential errors in a much
more sophisticated way.
Agreed.
I spotted this with the Geofabriks OSM Inspector, but that's still a bit
too slow to update, it would be much better if it updated at least hourly
or even from the minute diffs.
The revert tools should also be made to look what exactly was modified in
the changeset. Eg. if a node was moved, but tags were left untouched, and
after that someone else modified only the tags but didn't move the node,
reverting the first change should only move the node back to it's original
position and not change the tags back as those were changed by someone
else.
Teemu Koskinen
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