[OSM-talk] License plan
singularita at gmail.com
Wed Mar 4 10:54:06 GMT 2009
> If we follow the rule of reverting incompatible changes only 2 is
> reverted to 1 (A’s scribble gets added back in). 3 is considered an
> independent change. We end up with both a scribble and a neat road in
> the same area. This situation likely won’t be easy to detect until
> after the changes, when validators will gleefully litter the map with
> warnings about overlapping ways.
That is perhaps worse than "we'll just delete/revert 5% of data".
Because this revertion/deletion would cause another perhaps 20% of
data (and it won't be always easy to spot them in the remaining 95%)
to be left in more or less inconsistent state that would need some
work to get consistent again.
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