The admin level 3 subarea relations to Vietnam do not have tag `is_in:country_code: VN`

All these need to have the tag is_in:country_code: VN. Each has a parent relation of Vietnam but the tag is missing.

See image:

The tag is_in is unnecessary when the outer area is expressed as an area because membership can be determined geometrically. The tag has been stripped out systematically in some places; it was done in France many years ago and they haven’t looked back.

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Hi,

Here’s a random address search of a place in Vietnam listing out the order within the admin structure i.e. got it all set up and the system will know where it fits in.

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