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Type:
Bug
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Resolution: Done
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Priority:
Major - P3
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Affects Version/s: 2.1.2
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Component/s: None
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Minor Change
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ALL
Found this while testing PyMongo against 2.1.2. In 2.0.x mongod returns {'ok': 1.0, 'value': {}}, in 2.1.2 it returns
{'ok': 1.0, 'value': null}.
MongoDB shell version: 2.0.6
connecting to: test
> db.test.findAndModify({query: {'_id': 1}, update: {'$inc': {'i': 1}}, upsert: true})
{ }
MongoDB shell version: 2.1.2
connecting to: test
> db.test.findAndModify({query: {'_id': 1}, update: {'$inc': {'i': 1}}, upsert: true})
null
This will cause problems for code that expects a document as return value.