fix: always close tags when namespace is foreign

[dummdidumm]

This was a mixup of the if block logic, we should always close tags in foreign namespace. Doesn't really help with unskipping any tests though, because we have no way of preserving attribute names using the $.template approach (to my knowledge) - we need the DOM creation abstraction API (createElement etc) for that, which will come sometime in 5.x.

[changeset-bot]

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