Error nailgun migration from 5_0 to 5_0_1

[Evgeniy L]

1. checkout fuel-web stable/5.0 run `manage.py migrate upgrade head`
2. upload fixtures `manage.py loaddefault && manage.py loaddata nailgun/fixtures/sample_environment.json`
3. checkout master, run `manage.py migrate upgrade head`

sqlalchemy.exc.IntegrityError: (IntegrityError) column "can_update_from_versions" contains null values
 'ALTER TABLE releases ADD COLUMN can_update_from_versions TEXT NOT NULL' {}

http://paste.openstack.org/show/83616/

[Evgeniy L (rustyrobot)]

Here is the comment from me where I suggested to remove not null constraint.

https://review.openstack.org/#/c/86275/29/nailgun/nailgun/db/sqlalchemy/models/release.py

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/99668

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/99668
Committed: https://git.openstack.org/cgit/stackforge/fuel-web/commit/?id=8106cba16120157668bb1d1cb8624a92707a64e2
Submitter: Jenkins
Branch: master

commit 8106cba16120157668bb1d1cb8624a92707a64e2
Author: Dima Shulyak <email address hidden>
Date: Thu Jun 12 16:49:45 2014 +0300

    Use server_default=[] for can_update_from_versions

    Column can_update_from_versions of release table
    should use server_default='[]'

    Change-Id: I2d8a1e3e9ea85a5c99684eacb4eb3131cfb9fb81
    Closes-Bug: #1328874

[Evgeniy L (rustyrobot)]

It's not so easy to cover such bugs with tests, I created separate bug, lets think how it could be done

https://bugs.launchpad.net/fuel/+bug/1330466

[Evgeniy L (rustyrobot)]

Removing from 5.0.1 release since we don't have migration changes in maintenance releases.

https://bugs.launchpad.net/fuel/+bug/1335088