diff --git a/src/applications/phid/query/PhabricatorHandleQuery.php b/src/applications/phid/query/PhabricatorHandleQuery.php
--- a/src/applications/phid/query/PhabricatorHandleQuery.php
+++ b/src/applications/phid/query/PhabricatorHandleQuery.php
@@ -37,6 +37,12 @@
       ->requireCapabilities($this->getRequiredObjectCapabilities())
       ->setViewer($this->getViewer());
 
+    // We never want the subquery to raise policy exceptions, even if this
+    // query is being executed via executeOne(). Policy exceptions are not
+    // meaningful or relevant for handles, which load in an "Unknown" or
+    // "Restricted" state after encountering a policy violation.
+    $object_query->setRaisePolicyExceptions(false);
+
     $objects = $object_query->execute();
     $filtered = $object_query->getPolicyFilteredPHIDs();