Minor, actually update commit author field when it is parsed by the worker.

src/applications/repository/worker/commitmessageparser/base/PhabricatorRepositoryCommitMessageParserWorker.php

@@ -47,6 +47,12 @@ abstract class PhabricatorRepositoryCommitMessageParserWorker
       $parser_obj->parseCommitDetails();
     }
 
+    $author_phid = $data->getCommitDetail('authorPHID');
+    if ($author_phid) {
+      $commit->setAuthorPHID($author_phid);
+      $commit->save();
+    }
+
     $data->save();
 
     $conn_w = id(new DifferentialRevision())->establishConnection('w');