diff --git a/src/applications/audit/editor/PhabricatorAuditEditor.php b/src/applications/audit/editor/PhabricatorAuditEditor.php
--- a/src/applications/audit/editor/PhabricatorAuditEditor.php
+++ b/src/applications/audit/editor/PhabricatorAuditEditor.php
@@ -886,9 +886,8 @@
   protected function buildHeraldAdapter(
     PhabricatorLiskDAO $object,
     array $xactions) {
-
     return id(new HeraldCommitAdapter())
-      ->setCommit($object);
+      ->setObject($object);
   }
 
   protected function didApplyHeraldRules(
diff --git a/src/applications/differential/herald/HeraldDifferentialRevisionAdapter.php b/src/applications/differential/herald/HeraldDifferentialRevisionAdapter.php
--- a/src/applications/differential/herald/HeraldDifferentialRevisionAdapter.php
+++ b/src/applications/differential/herald/HeraldDifferentialRevisionAdapter.php
@@ -29,7 +29,7 @@
       'Test rules which run when a revision is created or updated.');
   }
 
-  public function newTestAdapter($object) {
+  public function newTestAdapter(PhabricatorUser $viewer, $object) {
     return self::newLegacyAdapter(
       $object,
       $object->loadActiveDiff());
diff --git a/src/applications/diffusion/herald/HeraldCommitAdapter.php b/src/applications/diffusion/herald/HeraldCommitAdapter.php
--- a/src/applications/diffusion/herald/HeraldCommitAdapter.php
+++ b/src/applications/diffusion/herald/HeraldCommitAdapter.php
@@ -8,7 +8,6 @@
   protected $revision;
 
   protected $commit;
-  protected $commitData;
   private $commitDiff;
 
   protected $affectedPaths;
@@ -35,6 +34,23 @@
       'Test rules which run after a commit is discovered and imported.');
   }
 
+  public function newTestAdapter(PhabricatorUser $viewer, $object) {
+    $object = id(new DiffusionCommitQuery())
+      ->setViewer($viewer)
+      ->withPHIDs(array($object->getPHID()))
+      ->needCommitData(true)
+      ->executeOne();
+    if (!$object) {
+      throw new Exception(
+        pht(
+          'Failed to reload commit ("%s") to fetch commit data.',
+          $object->getPHID()));
+    }
+
+    return id(clone $this)
+      ->setObject($object);
+  }
+
   protected function initializeNewAdapter() {
     $this->commit = $this->newObject();
   }
@@ -100,33 +116,6 @@
     return pht('This rule can trigger for **repositories** and **projects**.');
   }
 
-  public function setCommit(PhabricatorRepositoryCommit $commit) {
-    $viewer = PhabricatorUser::getOmnipotentUser();
-
-    $repository = id(new PhabricatorRepositoryQuery())
-      ->setViewer($viewer)
-      ->withIDs(array($commit->getRepositoryID()))
-      ->executeOne();
-    if (!$repository) {
-      throw new Exception(pht('Unable to load repository!'));
-    }
-
-    $data = id(new PhabricatorRepositoryCommitData())->loadOneWhere(
-      'commitID = %d',
-      $commit->getID());
-    if (!$data) {
-      throw new Exception(pht('Unable to load commit data!'));
-    }
-
-    $this->commit = clone $commit;
-    $this->commit->attachRepository($repository);
-    $this->commit->attachCommitData($data);
-
-    $this->commitData = $data;
-
-    return $this;
-  }
-
   public function getHeraldName() {
     return $this->commit->getMonogram();
   }
@@ -171,7 +160,10 @@
   public function loadDifferentialRevision() {
     if ($this->affectedRevision === null) {
       $this->affectedRevision = false;
-      $data = $this->commitData;
+
+      $commit = $this->getObject();
+      $data = $commit->getCommitData();
+
       $revision_id = $data->getCommitDetail('differential.revisionID');
       if ($revision_id) {
         // NOTE: The Herald rule owner might not actually have access to
diff --git a/src/applications/herald/adapter/HeraldAdapter.php b/src/applications/herald/adapter/HeraldAdapter.php
--- a/src/applications/herald/adapter/HeraldAdapter.php
+++ b/src/applications/herald/adapter/HeraldAdapter.php
@@ -224,7 +224,7 @@
     return $this->isTestAdapterForObject($object);
   }
 
-  public function newTestAdapter($object) {
+  public function newTestAdapter(PhabricatorUser $viewer, $object) {
     return id(clone $this)
       ->setObject($object);
   }
diff --git a/src/applications/herald/controller/HeraldTestConsoleController.php b/src/applications/herald/controller/HeraldTestConsoleController.php
--- a/src/applications/herald/controller/HeraldTestConsoleController.php
+++ b/src/applications/herald/controller/HeraldTestConsoleController.php
@@ -142,7 +142,9 @@
 
     if ($request->isFormPost() && $adapter_key) {
       if (isset($can_select[$adapter_key])) {
-        $adapter = $can_select[$adapter_key]->newTestAdapter($object);
+        $adapter = $can_select[$adapter_key]->newTestAdapter(
+          $viewer,
+          $object);
         $this->setTestAdapter($adapter);
         return null;
       }