diff --git a/src/aphront/AphrontRequest.php b/src/aphront/AphrontRequest.php
--- a/src/aphront/AphrontRequest.php
+++ b/src/aphront/AphrontRequest.php
@@ -663,7 +663,7 @@
   }
 
   public function isContinueRequest() {
-    return $this->isFormPost() && $this->getStr('__continue__');
+    return $this->isFormOrHisecPost() && $this->getStr('__continue__');
   }
 
   public function isPreviewRequest() {
diff --git a/src/aphront/handler/PhabricatorHighSecurityRequestExceptionHandler.php b/src/aphront/handler/PhabricatorHighSecurityRequestExceptionHandler.php
--- a/src/aphront/handler/PhabricatorHighSecurityRequestExceptionHandler.php
+++ b/src/aphront/handler/PhabricatorHighSecurityRequestExceptionHandler.php
@@ -120,6 +120,13 @@
       $dialog->addHiddenInput($key, $value);
     }
 
+    // See T13289. If the user hit a "some transactions have no effect" dialog
+    // and elected to continue, we want to pass that flag through the MFA
+    // dialog even though it is not normally a passthrough request parameter.
+    if ($request->isContinueRequest()) {
+      $dialog->addHiddenInput(AphrontRequest::TYPE_CONTINUE, 1);
+    }
+
     return $dialog;
   }
 
diff --git a/src/applications/transactions/editor/PhabricatorApplicationTransactionEditor.php b/src/applications/transactions/editor/PhabricatorApplicationTransactionEditor.php
--- a/src/applications/transactions/editor/PhabricatorApplicationTransactionEditor.php
+++ b/src/applications/transactions/editor/PhabricatorApplicationTransactionEditor.php
@@ -2535,7 +2535,7 @@
     // If none of the transactions have an effect, the meta-transactions also
     // have no effect. Add them to the "no effect" list so we get a full set
     // of errors for everything.
-    if (!$any_effect) {
+    if (!$any_effect && !$has_comment) {
       $no_effect += $meta_xactions;
     }