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by mathias_10gen
4944 days ago
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One case that could break by this change is if you relied on insert's old default of being a no-op if an object with the same _id already exists. This can be used to efficiently insert a default document without race conditions. Example at https://github.com/RedBeard0531/Mongurl/blob/master/mongurl.... That said, it makes sense for this to be opt-in behavior rather than the default. |
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