save_load_environment step failed with TypeError: sequence item 0: expected string, dict found

[Andrey Sledzinskiy]

https://github.com/openstack/fuel-qa/blob/master/system_test/tests/strength/filling_root.py - this test failed with:

Traceback (most recent call last):
  File "/usr/lib/python2.7/unittest/case.py", line 331, in run
    testMethod()
  File "/usr/lib/python2.7/unittest/case.py", line 1043, in runTest
    self._testFunc()
  File "/home/jenkins/venv-nailgun-tests-2.9/local/lib/python2.7/site-packages/proboscis/case.py", line 296, in testng_method_mistake_capture_func
    compatability.capture_type_error(s_func)
  File "/home/jenkins/venv-nailgun-tests-2.9/local/lib/python2.7/site-packages/proboscis/compatability/exceptions_2_6.py", line 27, in capture_type_error
    func()
  File "/home/jenkins/venv-nailgun-tests-2.9/local/lib/python2.7/site-packages/proboscis/case.py", line 350, in func
    func(test_case.state.get_state())
  File "/home/jenkins/workspace/8.0.system_test.ubuntu.filling_root/system_test/helpers/decorators.py", line 54, in wrapper
    result = func(*args, **kwargs)
  File "/home/jenkins/workspace/8.0.system_test.ubuntu.filling_root/system_test/helpers/decorators.py", line 79, in wrapper
    result = func(*args, **kwargs)
  File "/home/jenkins/workspace/8.0.system_test.ubuntu.filling_root/system_test/tests/actions_base.py", line 308, in save_load_environment
    self.fuel_web.client.list_cluster_nodes(self.cluster_id))
  File "/home/jenkins/workspace/8.0.system_test.ubuntu.filling_root/fuelweb_test/models/environment.py", line 148, in sync_time
    .format(', '.join(sorted(nodes_names))))
TypeError: sequence item 0: expected string, dict found

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/280298
Committed: https://git.openstack.org/cgit/openstack/fuel-qa/commit/?id=96abf6edeb89f1a6074411ec98901aa3e46cd89d
Submitter: Jenkins
Branch: stable/8.0

commit 96abf6edeb89f1a6074411ec98901aa3e46cd89d
Author: Alexander Kurenyshev <email address hidden>
Date: Mon Feb 15 18:45:38 2016 +0300

    Remove unnecessary argument from call to sync func

    Since a patch https://review.openstack.org/#/c/276143
    was merged to the stable 8.0 branch
    this patch https://review.openstack.org/#/c/272593
    should be removed.

    Closes-Bug:1543125
    Change-Id: Ia9c1b86847d99b2aa20f50a6b0e98c58d0e3b297