Comment 5 for bug 1569920

Reviewed: https://review.openstack.org/313076
Committed: https://git.openstack.org/cgit/openstack/fuel-web/commit/?id=d35f0112d955e31e5ececdea17798b5be6ead435
Submitter: Jenkins
Branch: stable/8.0

commit d35f0112d955e31e5ececdea17798b5be6ead435
Author: Igor Kalnitsky <email address hidden>
Date: Thu May 5 20:09:29 2016 +0300

    Fix 'reexecute_on' for pre-/post- deployment tasks

    So far 'reexecute_on' for pre- and post- deployment tasks has been taken
    into account only in scale-down case (when there's nothing to deploy,
    only to remove). That cause a lot of trouble when it's impossible to
    plugin developers to trigger some action in scale-up case.

    Since now it's fixed, and 'reexecute_on' works for pre- and post-
    deployment tasks in all cases.

    This commit won't be merged into master and stable/9.0, since the whole
    system has been rewritten during LCM story and all tasks are intended to
    be reexecuted by default unless their conditions say "No".

    Change-Id: Ib65585c8b4cff18444192f377545fed82b5144da
    Closes-Bug: #1569920