The BulkWrite command throws a ClientBulkWriteException when there is a conflict issue. However, this exception does not include the TransientTransactionError label, which is only present in the InnerException.

As a result, the session.WithTransactionAsync method does not automatically retry the operation, as it should.

Steps to Reproduce:

1. Execute a BulkWrite operation inside a session.WithTransactionAsync block.
2. Introduce a transient conflict error (e.g., a write conflict).
3. Observe that the operation fails without retrying, even though retries are expected in this scenario.

Expected Behavior:
The ClientBulkWriteException should include the TransientTransactionError label to ensure session.WithTransactionAsync retries the operation as intended.

Actual Behavior:
The TransientTransactionError label is present only in the InnerException, and the session.WithTransactionAsync method does not retry the operation.

Created from community post: https://www.mongodb.com/community/forums/t/retry-does-not-work-with-bulkwrite-operations-within-the-session/308012