diff --git a/src/repository/api/ArcanistMercurialAPI.php b/src/repository/api/ArcanistMercurialAPI.php
--- a/src/repository/api/ArcanistMercurialAPI.php
+++ b/src/repository/api/ArcanistMercurialAPI.php
@@ -50,6 +50,13 @@
     return $this->getPath('.hg');
   }
 
+  protected function newCurrentCommitRef() {
+    $current_commit_hash = $this->getCanonicalRevisionName('.');
+
+    return id(new ArcanistCommitRef())
+      ->setCommitHash($current_commit_hash);
+  }
+
   public function getSourceControlBaseRevision() {
     return $this->getCanonicalRevisionName($this->getBaseCommit());
   }
diff --git a/src/workflow/ArcanistAmendWorkflow.php b/src/workflow/ArcanistAmendWorkflow.php
--- a/src/workflow/ArcanistAmendWorkflow.php
+++ b/src/workflow/ArcanistAmendWorkflow.php
@@ -164,8 +164,6 @@
         ->execute();
     }
 
-    return;
-
     if ($api->getUncommittedChanges()) {
       // TODO: Make this class of error show the uncommitted changes.