[EAP] liveness probe fails with PROBE_DISABLE_BOOT_ERRORS_CHECK

2018-04-09 14:33:32,206 INFO [probe.eap.dmr.EapProbe] Executing test probe.eap.dmr.DeploymentTest
2018-04-09 14:33:32,206 DEBUG [probe.eap.dmr.EapProbe] Test input = {
    "outcome": "success",
    "result": [
        {
            "address": [
                {
                    "deployment": "activemq-rar.rar"
                }
            ],
            "outcome": "success",
            "result": "OK"
        },
        {
            "address": [
                {
                    "deployment": "ROOT.war"
                }
            ],
            "outcome": "success",
            "result": "FAILED"
        }
    ]
}
2018-04-09 14:33:32,206 ERROR [probe.eap.dmr.EapProbe] Unexpected failure running test probe.eap.dmr.DeploymentTest
Traceback (most recent call last):
  File "/opt/eap/bin/probes/probe/api.py", line 126, in execute
    (state, messages) = test.evaluate(testResults)
  File "/opt/eap/bin/probes/probe/eap/dmr.py", line 147, in evaluate
    return (min(status), messages)
  File "/usr/lib/python2.7/site-packages/enum/__init__.py", line 709, in __lt__
    raise TypeError("unorderable types: %s() < %s()" % (self.__class__.__name__, other.__class__.__name__))
TypeError: unorderable types: Status() < Status()
2018-04-09 14:33:32,206 INFO [__main__.ProbeRunner] Probe probe.eap.dmr.EapProbe returned statuses [READY, FAILURE]
2018-04-09 14:33:32,206 DEBUG [__main__.ProbeRunner] Probe probe.eap.dmr.EapProbe returned messages {
    "probe.eap.dmr.ServerStatusTest": "running",
    "probe.eap.dmr.DeploymentTest": "Exception executing test: unorderable types: Status() < Status()",
    "probe.eap.dmr.BootErrorsTest": "Boot errors check is disabled"
}