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Changes between Initial Version and Version 1 of Ticket #28197, comment 5

initial	v1
3	3	1) Translation teams from different locales could focus on the generic fallback version first- and then quickly copy it to make country specific localizations. Hopefully it would not get political as any translator who disagreed with a translation in the default could just change it for their specific locale.
4	4
5		2) This avoids having to build and maintain and ordered list of fallbacks for each language.
	5	2) This avoids having to build and maintain an ordered list of fallbacks for each language.
6	6
7	7	Instead of defaulting to "generic" we could default to the locale with simply the largest population. E.g. English > United States, Spanish > Mexico, Portuguese > Brazil. But then you might get might get a Spanish (es_ES) translation for an es_MX localizations simply because it would be used more. So for this reason, a generic fallback would probably be better.