Invalid Test Check: "XFER1: Conditionally Create Patient and add new Observation as Transaction"

[pcosmog]

The test fails with result:
XFER1: Conditionally Create Patient and add new Observation as Transaction
Message Expected all Bundle.entry.response.status to be 200, 201, or 204; but found: 304 Not Modified

However, the patient record doesn't change at all. The returned results have a response status of 304 for the unmodified patient, and a 201 for the newly created observation.

Is this not correct behaviour? Test link: https://projectcrucible.org/servers/5ba3959b04ebd010c000000a#5d40fba504ebd01292000000/transactionandbatchtest/XFER1