looponfail does not re-run only the failed tests when distribution is enabled

looponfail is supposed to re-run only the tests that previously failed. It works per the expectation without distribution, but systematically re-runs all the tests (pass and fail) when distribution is enabled.

py.test test_looponfail.py --looponfail (OK)
py.test test_looponfail.py -n=1 --looponfail (NOK)

Please see all the logs below

I'm using:
python: 3.5.2
pytest: 3.1.2
pytest-xdist: 1.17.1

test_looponfail.py:

class TestLoopOnFail:

def test_this_test_should_pass(self):
    time.sleep(1)
    assert True, 'the test passed'

def test_this_test_should_fail(self):
    time.sleep(2)
    assert False, 'the test failed'

Case 1: Without distribution, only the test that fails re-runs

~/temp/pytest_examples/looponfail >py.test test_looponfail.py --looponfail
======================= test session starts ==============================
platform darwin -- Python 3.5.2, pytest-3.1.2, py-1.4.34, pluggy-0.4.0
rootdir: /Users/origaut/temp/pytest_examples/looponfail, inifile:
plugins: xdist-1.17.1
collected 2 items
collected 2 items

test_looponfail.py .F

======================= FAILURES ===================================
__________________ TestLoopOnFail.test_this_test_should_fail ___________________

self = <test_looponfail.TestLoopOnFail object at 0x102df1b00>

def test_this_test_should_fail(self):
    time.sleep(1)

  assert False, 'the test failed'

E AssertionError: the test failed
E assert False

test_looponfail.py:17: AssertionError
====================== 1 failed, 1 passed in 2.05 seconds ======================
############################ LOOPONFAILING ################################
test_looponfail.py::TestLoopOnFail::()::test_this_test_should_fail
############################ waiting for changes ###############################
### Watching: /Users/origaut/temp/pytest_examples/looponfail
# MODIFIED /Users/origaut/temp/pytest_examples/looponfail/test_looponfail.py
============================= test session starts ==============================
platform darwin -- Python 3.5.2, pytest-3.1.2, py-1.4.34, pluggy-0.4.0
rootdir: /Users/origaut/temp/pytest_examples/looponfail, inifile:
plugins: xdist-1.17.1
collected 3 items
collected 3 items

test_looponfail.py F

=================================== FAILURES ===================================
__________________ TestLoopOnFail.test_this_test_should_fail ___________________

self = <test_looponfail.TestLoopOnFail object at 0x1039e01d0>

def test_this_test_should_fail(self):
    time.sleep(2)

  assert False, 'the test failed'

E AssertionError: the test failed
E assert False

test_looponfail.py:17: AssertionError
=========================== 1 failed in 2.05 seconds ===========================
########################### LOOPONFAILING #################################
########################### waiting for changes ###############################

Case 2: With distribution, it re-runs all the tests

~/temp/pytest_examples/looponfail >py.test test_looponfail.py -n=1 --looponfail
============================ test session starts ==============================
platform darwin -- Python 3.5.2, pytest-3.1.2, py-1.4.34, pluggy-0.4.0
rootdir: /Users/origaut/temp/pytest_examples/looponfail, inifile:
plugins: xdist-1.17.1
gw0 I
gw0 [2]

scheduling tests via LoadScheduling
.F
================================== FAILURES ==============================
__________________ TestLoopOnFail.test_this_test_should_fail ___________________
[gw0] darwin -- Python 3.5.2 /Library/Frameworks/Python.framework/Versions/3.5/bin/python3.5
self = <test_looponfail.TestLoopOnFail object at 0x1049f3160>

def test_this_test_should_fail(self):
    time.sleep(2)

  assert False, 'the test failed'

E AssertionError: the test failed
E assert False

test_looponfail.py:16: AssertionError
====================== 1 failed, 1 passed in 3.42 seconds ======================
####################### LOOPONFAILING #####################################
test_looponfail.py::TestLoopOnFail::()::test_this_test_should_fail
####################### waiting for changes ###################################
### Watching: /Users/origaut/temp/pytest_examples/looponfail
# MODIFIED /Users/origaut/temp/pytest_examples/looponfail/test_looponfail.py
=========================== test session starts ==============================
platform darwin -- Python 3.5.2, pytest-3.1.2, py-1.4.34, pluggy-0.4.0
rootdir: /Users/origaut/temp/pytest_examples/looponfail, inifile:
plugins: xdist-1.17.1
gw0 I
gw0 [2]

scheduling tests via LoadScheduling
.F
============================= FAILURES ===================================
__________________ TestLoopOnFail.test_this_test_should_fail ___________________
[gw0] darwin -- Python 3.5.2 /Library/Frameworks/Python.framework/Versions/3.5/bin/python3.5
self = <test_looponfail.TestLoopOnFail object at 0x103fddfd0>

def test_this_test_should_fail(self):
    time.sleep(1)

  assert False, 'the test failed'

E AssertionError: the test failed
E assert False

test_looponfail.py:16: AssertionError
====================== 1 failed, 1 passed in 2.45 seconds ======================
####################### LOOPONFAILING #####################################
test_looponfail.py::TestLoopOnFail::()::test_this_test_should_fail
####################### waiting for changes ###################################
### Watching: /Users/origaut/temp/pytest_examples/looponfail

Reproduce the issue with test_looponfail.py using py.test test_looponfail.py --looponfail and py.test test_looponfail.py -n=1 --looponfail. Compare the rerun selection after a file change; done means distribution with -n=1 reruns only the previously failing test, not the passing test.