Details
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Bug
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Resolution: Done
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Critical - P2
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None
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1.9.2
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None
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Windows
Description
We insert two types of data to mongodb: AaaChange and InferredChange. They both are derived from the base type Change. But when we query them out occasionally we get error: Unknown discriminator value 'InferredChange'. Attached are the code we used to query mongodb and the exception stack.