Mistral saves whole yaml for every wf definition in case of creating multiple wf.

[Oleg Ovcharuk]

Whenever we want to save multiple wf from one yaml, every saved wf will have all this input in their definitions. This behavior doesn't match with saving one wf. This could be bad for users, who want to parse definition.
For example:
I want to create two workflows from file wfs.yaml
"""
version: '2.0'
wf1:
  type: direct
  tasks:
    task1:
      action: std.noop
wf2:
  type: direct
  tasks:
    task1:
      action: std.noop
"""
mistral workflow-get-definition wf1

Expected output:
"""
version: '2.0'
wf1:
  type: direct
  tasks:
    task1:
      action: std.noop
"""

Actual output:
"""
version: '2.0'
wf1:
  type: direct
  tasks:
    task1:
      action: std.noop
wf2:
  type: direct
  tasks:
    task1:
      action: std.noop
"""

The same behavior appears when I want to update wfs.

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/603208

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/603208
Committed: https://git.openstack.org/cgit/openstack/mistral/commit/?id=c712e369edb15f26e7adf1c5a738f884c3246fc8
Submitter: Zuul
Branch: master

commit c712e369edb15f26e7adf1c5a738f884c3246fc8
Author: Oleg Ovcharuk <email address hidden>
Date: Mon Sep 17 19:23:22 2018 +0300

    Divide yaml input to save it into definitions separately.

    In case of creating/updating multiple workflows from one yaml,
    we should not save the whole input to each workflow.

    Closes-Bug: #1792975
    Change-Id: I724c041ab3441805fcfa2cfc4a50afd774998cc7
    Signed-off-by: Oleg Ovcharuk <email address hidden>

[OpenStack Infra (hudson-openstack)]

This issue was fixed in the openstack/mistral 8.0.0.0b1 development milestone.