Random test failure at init time from empty Nuxeo Drive folder

23:26:37 ======================================================================
23:26:37 FAIL: test_binding_synchronization_empty_start (nxdrive.tests.test_integration_synchronization.TestIntegrationSynchronization)
23:26:37 ----------------------------------------------------------------------
23:26:37 Traceback (most recent call last):
23:26:37   File "C:\Jenkins\workspace\IT-nuxeo-drive-master-windows\nuxeo-drive-client\nxdrive\tests\test_integration_synchronization.py", line 326, in test_binding_synchronization_empty_start
23:26:37     self.assertEquals(len(ctl.list_pending()), 0)
23:26:37 AssertionError: 1 != 0