How are conflicts between rosetta and upstream translations resolved?

[Åsmund Skjæveland]

We've had a few minor issues with bad Norwegian translations in Rosetta, 
and at least in one case the upstream translation was apparently 
overridden. So I'm wondering: If a string is first translated in Rosetta, 
then in upstream, which takes precedence? I'm assuming that the upstream 
translation is imported regularly.

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Åsmund Skjæveland