[system_tests] 'NoneType' object has no attribute 'group' in sys tests delete_vips on ubuntu

[Tatyanka]

http://jenkins-product.srt.mirantis.net:8080/view/4.1%20system%20tests/job/4.1_fuelmain.system_test.ubuntu.thread_4/71/testReport/junit/%28root%29/ha_delete_vips/ha_delete_vips/

Stacktrace

Traceback (most recent call last):
  File "/usr/lib/python2.7/unittest/case.py", line 332, in run
    testMethod()
  File "/usr/lib/python2.7/unittest/case.py", line 1044, in runTest
    self._testFunc()
  File "/home/jenkins/venv-nailgun-tests/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/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/local/lib/python2.7/site-packages/proboscis/case.py", line 350, in func
    func(test_case.state.get_state())
  File "/home/jenkins/workspace/4.1_fuelmain.system_test.ubuntu.thread_4/fuelweb_test/helpers/decorators.py", line 46, in wrapper
    return func(*args, **kwagrs)
  File "/home/jenkins/workspace/4.1_fuelmain.system_test.ubuntu.thread_4/fuelweb_test/tests/test_ha.py", line 232, in ha_delete_vips
    addresses).group('ip')
AttributeError: 'NoneType' object has no attribute 'group'

[Andrey Sledzinskiy (asledzinskiy)]

Bug is not reproduced on {"build_id": "2014-03-31_01-00-26", "mirantis": "yes", "build_number": "59", "nailgun_sha": "21ba4d98f11be492c6232a5b0d1701d0d6dbd7c4", "ostf_sha": "b54542db20878c6d11b23e5d2285273a28807b8c", "fuelmain_sha": "4f951a668f64b003ae8aa9257a9fb5ec69b17b80", "astute_sha": "2aba323f3a2fec3d92eb74fa229f7fed1e1f76b9", "release": "5.0", "fuellib_sha": "ba43fdc23a00a1de13c490fb9e01371ffbe723b7"}