heat db migration test cases create multiple stack with same template id

[Kanagaraj Manickam]

https://github.com/openstack/heat/blob/master/heat/tests/db/test_migrations.py#L358 creates multiple stacks with same stack and this bug is filed to fix it.

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/162077

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/162077
Committed: https://git.openstack.org/cgit/openstack/heat/commit/?id=743d923c93e03029afdcb0de2ff3fd504319b4b2
Submitter: Jenkins
Branch: master

commit 743d923c93e03029afdcb0de2ff3fd504319b4b2
Author: Kanagaraj Manickam <email address hidden>
Date: Fri Mar 6 15:46:54 2015 +0530

    Fix migration testcase 1-to-1 between stack and raw_template

    _pre_upgrade_047 unit test case creates multiple stacks with same
    raw_template id, which is invalid. This patch fixes this issue

    Change-Id: Ibcaa8bbaa71fb2880c50cc0d634c6fcf6e12a80f
    Closes-bug: #1429029

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/162689

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/162689
Committed: https://git.openstack.org/cgit/openstack/heat/commit/?id=b766a40c00a47c6f8d10647df21339c8227a7a6e
Submitter: Jenkins
Branch: master

commit b766a40c00a47c6f8d10647df21339c8227a7a6e
Author: Kanagaraj Manickam <email address hidden>
Date: Mon Mar 9 16:40:53 2015 +0530

    Fix migration testcase 1-to-1 between stack and raw_template

    Some of unit test case creates multiple stacks with same
    raw_template id, which is invalid. This patch fixes this issue

    Closes-bug: #1429029
    Change-Id: I391e3dbc12197810580f0f22f778cdb2efdeec82