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Type: Bug
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Resolution: Works as Designed
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Priority: Major - P3
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None
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Affects Version/s: None
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Component/s: None
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Labels:None
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Query Execution
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ALL
The code in ElemMatchObjectMatchExpression::matchesArray() is not checking for strict object type for sub-objects. This means the _sub match expression could incorrectly be applied on a sub-array and match wrong documents in some cases. We should change the above condition to inner.type() == Object instead.