Add a jstest that verifies a jumbo chunk that cannot be split due to low shard key cardinality can be split and moved after the shard key is refined. This test should verify such a chunk can be split both manually (i.e. by the moveChunk command) and by the balancer.
- has to be done after
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SERVER-42141 Implement sharded metadata updates for refineCollectionShardKey without using a transaction
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- Closed
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