Acceptance tests using different clients concurrently. Environment deployed from packages.

Build: #1068 failed

Job: Spaces basic failed

user creates space using client1 and using client2 he sees that it has appeared[1oz 1op 1oc-web GUi-RESt]: Test case result

The below summarizes the result of the test " user creates space using client1 and using client2 he sees that it has appeared[1oz 1op 1oc-web GUi-RESt]" in build 1,068 of Onedata Products - mixed acceptance pkg - Chrome spaces basic tests.
Description
user creates space using client1 and using client2 he sees that it has appeared[1oz 1op 1oc-web GUi-RESt]
Test class
mixed.scenarios.test_spaces_basic
Method
test_user_creates_space_using_client1_and_using_client2_he_sees_that_it_has_appeared[1oz_1op_1oc-web GUI-REST]
Duration
3 mins
Status
Failed (New Failure)

Error Log

ValueError: Invalid value for `creation_time`, must not be `None`
request = <FixtureRequest for <Function 'test_user_creates_space_using_client1_and_using_client2_he_sees_that_it_has_appeared[1oz_1op_1oc-web GUI-REST]'>>

    @pytest.mark.usefixtures(*function_args)
    def scenario_wrapper(request):
>       _execute_scenario(feature, scenario, request, encoding)

/usr/local/lib/python3.6/dist-packages/pytest_bdd/scenario.py:227: 
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 
/usr/local/lib/python3.6/dist-packages/pytest_bdd/scenario.py:189: in _execute_scenario
    _execute_step_function(request, scenario, step, step_func)
/usr/local/lib/python3.6/dist-packages/pytest_bdd/scenario.py:130: in _execute_step_function
    step_func(**kwargs)
tests/mixed/steps/space_basic.py:234: in assert_there_are_spaces_in_oz
    space_list)
tests/mixed/steps/rest/onezone/space_management.py:144: in assert_spaces_have_appeared_in_oz_rest
    assert get_user_space_with_name(user_client, space_name), 'There is no ' \
tests/mixed/steps/rest/onezone/common.py:31: in get_user_space_with_name
    space = user_api.get_user_space(sid)
tests/mixed/onezone_client/apis/user_api.py:2496: in get_user_space
    (data) = self.get_user_space_with_http_info(sid, **kwargs)
tests/mixed/onezone_client/apis/user_api.py:2569: in get_user_space_with_http_info
    collection_formats=collection_formats)
tests/mixed/onezone_client/api_client.py:317: in call_api
    _return_http_data_only, collection_formats, _preload_content, _request_timeout)
tests/mixed/onezone_client/api_client.py:159: in __call_api
    return_data = self.deserialize(response_data, response_type)
tests/mixed/onezone_client/api_client.py:232: in deserialize
    return self.__deserialize(data, response_type)
tests/mixed/onezone_client/api_client.py:272: in __deserialize
    return self.__deserialize_model(data, klass)
tests/mixed/onezone_client/api_client.py:616: in __deserialize_model
    instance = klass(**kwargs)
tests/mixed/onezone_client/models/space.py:65: in __init__
    self.creation_time = creation_time
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 

self = {'creation_time': None,
 'creator': {'id': '7d48fd51d5adaf1f9a6c1b4e3f121be8ch6893', 'type': 'user'},
 'name': 'helloworld',
 'providers': {},
 'space_id': '06133428df21c559621042e90cd74634ch375c'}
creation_time = None

    @creation_time.setter
    def creation_time(self, creation_time):
        """
            Sets the creation_time of this Space.
    
            :param creation_time: The creation_time of this Space.
            :type: Timestamp
            """
        if creation_time is None:
>           raise ValueError("Invalid value for `creation_time`, must not be `None`")
E           ValueError: Invalid value for `creation_time`, must not be `None`

tests/mixed/onezone_client/models/space.py:184: ValueError