[Tilesathome] Strange rendering issue

[Ed Loach]

> I'll force an update, usually the clients update within 10
> minutes, or
> when they finish the current tile, whatever is later.*
> 
> So maybe wait until 20:00 UTC before re-requesting stuff, just
> to be safe.
> 
> *simplified for brevity

Thanks. I requested the 9 tiles I'd noticed near 2047,1347, waited
for them to complete and they all look fine. After that I checked
the 2047 column from the northeast coast of England to where it
meets the Meditteranean. There were scattered tiles all down that
line - a few in Lincolnshire, a few in London, 9 in France, but none
that I noticed in Spain. All added to the request queue.

I haven't the time now to check the rest of that column. I was
wondering whether it were possible to somehow script something to
request all tiles in 2047 column that have been rerendered since the
problem started (whenever that was), but haven't been rerendered
since say 19:45 this evening.

Either that or just let the locals who made modifications that
affected a tile to notice it looks wrong and re-request it, which
may be easier.

Ed