bf: ZENKO-147 Check site when setting failed hash

[bennettbuchanan]

Now that we have a single replication status processor so that operations occur sequentially, the replicationInfo backends may contain a 'FAILED' status from a previous operation. This change ensures that the failure hash field is set only once.

I will aim to get https://github.com/scality/Integration/pull/660 merged to avoid this kind of unexpected problem going forward.

[ironman-machine]

PR has been updated. Reviewers, please be cautious.

[bennettbuchanan]

@ironman-machine
RUN_BACKBEAT_CRR_TESTS=true
try

[ironman-machine]

Hello @bennettbuchanan

"RUN_BACKBEAT_CRR_TESTS=true": Success
"try": Success: Try build successfully launched on 'http://ci.ironmann.io/gh/scality/Integration/21463' with the following env. args:

{
    "RUN_BACKBEAT_CRR_TESTS": "true",
    "DEFAULT_BRANCH": "master",
    "SCALITY_INTEGRATION_BRANCH": "ultron/master",
    "REPO_NAME": "backbeat",
    "SCALITY_BACKBEAT_BRANCH": "bf/ZENKO-147/setFailedFieldSite"
}