diff --git a/src/workflow/ArcanistDiffWorkflow.php b/src/workflow/ArcanistDiffWorkflow.php
--- a/src/workflow/ArcanistDiffWorkflow.php
+++ b/src/workflow/ArcanistDiffWorkflow.php
@@ -2961,6 +2961,7 @@
 
       // Don't automatically depend on revisions authored by other users.
       if ($revision_ref->getAuthorPHID() != $viewer_phid) {
+        unset($revision_refs[$key]);
         continue;
       }
     }