What is the expected behavior?

Calling .end(encoding, callback) .end(data, callback) on overridden requests, or when recording, should have the same behavior as a real client request.

When recording, calling .end(callback) should have the same behavior as a real client request.

See #1542 which fixed the .end(callback) case for overridden requests.

First reported in #1509.

What is the actual behavior?

Not sure.

Possible solution

Adapt Node's code for shuffling argument: #1509 (comment)

Does the bug have a test case?

Not yet.