Fix two issues in owners worker

Summary:
Fix two issues in PhabricatorRepositoryCommitOwnersWorker:

- if a commit was reviewed by some owner of the package, it should not be
  marked as needing audit
- do not run herald worker when it is not needed (for example, when the
  worker is executed from reparse.php)

Test Plan:
reparse a commit which is reviewed by the owner of a package
and verify that it is not marked as needing audit, and herald is not
executed.

Reviewers: nh, epriestley

Reviewed By: epriestley

CC: aran, epriestley

Differential Revision: https://secure.phabricator.com/D1496

src/applications/repository/worker/owner/PhabricatorRepositoryCommitOwnersWorker.php

@@ -63,6 +63,7 @@ class PhabricatorRepositoryCommitOwnersWorker
       }
     }
 
+    if ($this->shouldQueueFollowupTasks()) {
       $herald_task = new PhabricatorWorkerTask();
       $herald_task->setTaskClass('PhabricatorRepositoryCommitHeraldWorker');
       $herald_task->setData(
@@ -71,6 +72,7 @@ class PhabricatorRepositoryCommitOwnersWorker
         ));
       $herald_task->save();
     }
+  }
 
   private function checkAuditReasons(
     PhabricatorRepositoryCommit $commit,
@@ -117,7 +119,7 @@ class PhabricatorRepositoryCommitOwnersWorker
     $owners_phids = mpull($owners, 'getUserPHID');
 
     if (!($commit_author_phid && in_array($commit_author_phid, $owners_phids) ||
-        $revision_author_phid && in_array($revision_author_phid,
+        $commit_reviewedby_phid && in_array($commit_reviewedby_phid,
           $owners_phids))) {
       $reasons[] = "Owners Not Involved";
     }