[tz] OpenJDK/CLDR/ICU/Joda issues with Ireland change

[Random832]

On Wed, Jan 24, 2018, at 17:03, Mark Davis ☕️ wrote:
> Each metazones represent a set names that can be used across multiple TZ
> ids. There can be overrides by TZ id, such as the current:
> 
> <zone type="Europe/London">
> <long>
> <daylight>British Summer Time</daylight>
> </long>
> </zone>
> <zone type="Europe/Dublin">
> <long>
> <daylight>Irish Standard Time</daylight>
> </long>
> </zone>
> 
> Both of these inherit
> 
> <standard>Greenwich Mean Time</standard>
> 
> So a current implementation, with no changes, will get for Europe/Dublin:
> 
> <standard>Greenwich Mean Time</standard>
> <daylight>Irish Standard Time</daylight>

So just to be clear, CLDR *could* support a Europe/Dublin that had an independent metazone with <standard>Irish Standard Time</standard><daylight>Greenwich Mean Time</daylight>, it's just that synchronizing such a change with the tzdb change is intractable, right?

(that version number field is looking more and more important...)