[Talk-GB] What has happened to Relation 2204 (ncn 4)?

[Lennard]

Ed Loach wrote:

> I think there is an issue with JOSM where if you download the
> relation, then download the ways that make that relation, it isn't
> aware of other relations those ways are in. That means if you split

You don't get that information when you download only a way from the 
API, right?

> any ways, while JOSM may update the relation you *have* downloaded,
> it will also create gaps in all the ones it doesn’t. I've seen this
> a lot with boundary relations recently where someone has tried to
> improve things in one place but broken a lot of others...

Today's lesson is: Always download where you want to edit. In this case, 
download where you want to split a way. You'll get all the relations for 
that way, and the split will produce the correct results.

> So, in JOSM, don't play with relations unless you are very (very,
> very) careful or have downloaded the whole area the relation covers
> (is my advice).

The conflict detection and resolving stuff in JOSM has been quite wonky 
in one way or another over the past year, but recently it's been quite 
good, in my experience at least. Current tested is 2561, latest is way 
past that. Hopefully a lot of the old cruft will go once they release a 
new tested version shortly.

-- 
Lennard