sharding_uninitialized_fcv_jscore_passthrough.yml is a new test suite that sets a 2-shard cluster. Currently, concurrent_drops_and_creates.js creates two unsharded collections but does not control the placement of them. If the collections are created in two different shards, the transaction in the test becomes distributed and returns an error that the operation is not supported.

The test should control that the two collections are colocated in the same shard as expected and produce the WriteConflict.