Automation: Getting TypeError: unhashable type: 'dict' while verifying svc instance

[musharani]

While verifying the service instance getting the below error. This issue is seen for only service instance version1.

  File "/contrail-test/fixtures/webui_test.py", line 535, in create_svc_instance
    fixture.verify_on_setup()
  File "/contrail-test/fixtures/svc_instance_fixture.py", line 591, in verify_on_setup
    self.report(self.verify_svm(wait_for_vms))
  File "tcutils/util.py", line 61, in f_retry
    result = f(*args, **kwargs) # first attempt
  File "/contrail-test/fixtures/svc_instance_fixture.py", line 414, in verify_svm
    (vm_refs, msg) = self.get_vm_refs()
  File "/contrail-test/fixtures/svc_instance_fixture.py", line 403, in get_vm_refs
    return (set(vm_refs), None)
TypeError: unhashable type: 'dict'

testcase name:
test1_9_create_svc_instances

Issue is seen in 4.1 and mainline branches.

[OpenContrail Admin (ci-admin-f)]

Review in progress for https://review.opencontrail.org/37143
Submitter: Vedamurthy Joshi (<email address hidden>)

[OpenContrail Admin (ci-admin-f)]

Review in progress for https://review.opencontrail.org/37250
Submitter: Vedamurthy Joshi (<email address hidden>)

[OpenContrail Admin (ci-admin-f)]

Reviewed: https://review.opencontrail.org/37250
Committed: http://github.com/Juniper/contrail-test-ci/commit/325e33b8db7a2de7146418848862ade429a10fd9
Submitter: Zuul (<email address hidden>)
Branch: R4.1

commit 325e33b8db7a2de7146418848862ade429a10fd9
Author: Vedu Joshi <email address hidden>
Date: Fri Nov 3 14:51:15 2017 +0530

vm_refs should be a list of UUIDs

Change-Id: I10693470875a0ad2e0ab5fdc6dbdbb2500c15e44
Closes-Bug: 1729807

[OpenContrail Admin (ci-admin-f)]

Reviewed: https://review.opencontrail.org/37143
Committed: http://github.com/Juniper/contrail-test-ci/commit/2ee03ffcea125889849d0e71b3d0fa6187414e67
Submitter: Zuul (<email address hidden>)
Branch: master

commit 2ee03ffcea125889849d0e71b3d0fa6187414e67
Author: Vedu Joshi <email address hidden>
Date: Fri Nov 3 14:51:15 2017 +0530

vm_refs should be a list of UUIDs

Change-Id: I10693470875a0ad2e0ab5fdc6dbdbb2500c15e44
Closes-Bug: 1729807

[OpenContrail Admin (ci-admin-f)]

Review in progress for https://review.opencontrail.org/40095
Submitter: Ankit Jain (<email address hidden>)