Error during tenant_quota_usages function calls @memoized cache

[Michael Dovgal]

tenant_quota_usages method here [0] accept list as an input parameter.
Due to list is not immutable object, it couldn't be cached buy @memoized decorator but still method is covered by it.
Every call of this function triggers UnhashableKeyWarning here [1].

[0] - https://github.com/openstack/horizon/blob/359467b4013bb4f89a6a1309e6eda89459288986/openstack_dashboard/usage/quotas.py#L442

[1] - https://github.com/openstack/horizon/blob/4570b4cd7813c5b5d559a87c715f4ee6e6f1f63d/horizon/utils/memoized.py#L88

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/477557

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/477557
Committed: https://git.openstack.org/cgit/openstack/horizon/commit/?id=ca0f293cb60aa1717cdefed4cbae66a3b2c186b3
Submitter: Jenkins
Branch: master

commit ca0f293cb60aa1717cdefed4cbae66a3b2c186b3
Author: Mykhailo Dovgal <email address hidden>
Date: Mon Jun 26 17:14:25 2017 +0300

    Fix tenant_quota_usages function calls caching

    This patch changes type of 'targets' input parameter in
    tenant_quota_usages function from list -> tuple. It provides
    possibility for @memoized decorator to cache function calls.

    Change-Id: I3c32c3b65ae91e8487fda6148f259fe1931d7c9f
    Closes-Bug: #1700578

[OpenStack Infra (hudson-openstack)]

This issue was fixed in the openstack/horizon 12.0.0.0b3 development milestone.