_shardsvrShardCollection does not always include collectionUUID in the response

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    • Fully Compatible
    • ALL
    • v4.0
    • Sharding 2018-12-31, Sharding 2019-01-14, Sharding 2019-01-28, Sharding 2019-02-11, Sharding 2019-02-25, Sharding 2019-03-11
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      For example, if the command was "joined" here:

      https://github.com/mongodb/mongo/blob/r4.1.5/src/mongo/db/s/shardsvr_shard_collection.cpp#L604

      Need to also audit what happens when the command is retried, but fell into the else branch instead of joining like in the above link

      the configsvr/shard/mongos versions of shard collection should probably assert that uuid field always exists

            Assignee:
            Janna Golden
            Reporter:
            Randolph Tan
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              Created:
              Updated:
              Resolved: