Comment 5 for bug 1647189

@vkozhukalov, If you`ll google for 'nailgun manage.py dropdb', some official docs will come up in search results. If there is official documentation, then IMO we should support this kind of workflows.

Another point about graph's customization is totally right, but its realization will make this patch non-backportable and shouldn't be used given that we used the same unconditional call after environment's reset:
https://github.com/openstack/fuel-web/blob/master/nailgun/nailgun/task/manager.py#L920