https://github.com/mongodb/mongo-csharp-driver/blob/42d6f3c7820a7b476bb471a3e3baa0ee4a062181/src/MongoDB.Driver.Core/Core/Operations/ReadCommandOperation.cs#L71

 New connections created in the line 71 and 73. Instead of using the `Channel` that has already been stored in the `RetryableReadContext` we are going to to use a new one.