Index: devel/arcanist-lib/files/patch-src_workflow_ArcanistListWorkflow.php
===================================================================
--- /dev/null
+++ devel/arcanist-lib/files/patch-src_workflow_ArcanistListWorkflow.php
@@ -0,0 +1,25 @@
+--- src/workflow/ArcanistListWorkflow.php.orig	2023-01-27 15:20:47 UTC
++++ src/workflow/ArcanistListWorkflow.php
+@@ -63,13 +63,18 @@ EOTEXT
+ 
+     $info = array();
+     foreach ($revisions as $key => $revision) {
+-      $revision_path = Filesystem::resolvePath($revision['sourcePath']);
+-      $current_path  = Filesystem::resolvePath($repository_api->getPath());
+-      if ($revision_path == $current_path) {
+-        $info[$key]['exists'] = 1;
++      if ($revision['sourcePath']) {
++        $revision_path = Filesystem::resolvePath($revision['sourcePath']);
++        $current_path  = Filesystem::resolvePath($repository_api->getPath());
++        if ($revision_path == $current_path) {
++          $info[$key]['exists'] = 1;
++        } else {
++          $info[$key]['exists'] = 0;
++        }
+       } else {
+         $info[$key]['exists'] = 0;
+       }
++
+       $info[$key]['sort'] = sprintf(
+         '%d%04d%08d',
+         $info[$key]['exists'],