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The order is not important -- that would be corrected in the export, and reimported. The last, undefined, is always "other".
I think the order that would remain unchanged is one, zero, two, few, many, other (assuming a language has 6 forms).
I was surprised only that a bot changed my translations and wanted to know it better :-). I don't like such bot changes. The translator should do that, or other people that know what they do (e. g. you or Raymond). On the other hand, marking messages as fuzzy is very helpful.