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Type: Task
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Resolution: Fixed
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Priority: Major - P3
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Affects Version/s: None
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Component/s: None
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None
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Fully Compatible
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QO 2021-09-06, Query Optimization 2021-08-09, QO 2021-08-23
Many jstests (for example, the ones inside the 'jstests/aggregation/sources/lookup' directory) have the 'assumes_unsharded_collection' tag because $lookup on a sharded 'from' collection previously wasn't allowed. We should add back this test coverage in a way that ensures maximum multiversion testing is also preserved.