Index: resources/sql/patches/20131118.ownerorder.php
===================================================================
--- /dev/null
+++ resources/sql/patches/20131118.ownerorder.php
@@ -0,0 +1,38 @@
+<?php
+
+$table = new ManiphestTask();
+$conn_w = $table->establishConnection('w');
+
+foreach (new LiskMigrationIterator($table) as $task) {
+  $id = $task->getID();
+
+  echo "Checking task T{$id}...\n";
+  $owner_phid = $task->getOwnerPHID();
+
+  if (!$owner_phid && !$task->getOwnerOrdering()) {
+    // No owner and no ordering; we're all set.
+    continue;
+  }
+
+  $owner_handle = id(new PhabricatorHandleQuery())
+    ->setViewer(PhabricatorUser::getOmnipotentUser())
+    ->withPHIDs(array($owner_phid))
+    ->executeOne();
+
+  if ($owner_handle) {
+    $value = $owner_handle->getName();
+  } else {
+    $value = null;
+  }
+
+  if ($value !== $task->getOwnerOrdering()) {
+    queryfx(
+      $conn_w,
+      'UPDATE %T SET ownerOrdering = %ns WHERE id = %d',
+      $table->getTableName(),
+      $value,
+      $task->getID());
+  }
+}
+
+echo "Done.\n";
Index: src/applications/maniphest/editor/ManiphestTransactionEditor.php
===================================================================
--- src/applications/maniphest/editor/ManiphestTransactionEditor.php
+++ src/applications/maniphest/editor/ManiphestTransactionEditor.php
@@ -117,7 +117,26 @@
       case ManiphestTransaction::TYPE_DESCRIPTION:
         return $object->setDescription($xaction->getNewValue());
       case ManiphestTransaction::TYPE_OWNER:
-        return $object->setOwnerPHID($xaction->getNewValue());
+        $phid = $xaction->getNewValue();
+
+        // Update the "ownerOrdering" column to contain the full name of the
+        // owner, if the task is assigned.
+
+        $handle = null;
+        if ($phid) {
+          $handle = id(new PhabricatorHandleQuery())
+            ->setViewer($this->getActor())
+            ->withPHIDs(array($phid))
+            ->executeOne();
+        }
+
+        if ($handle) {
+          $object->setOwnerOrdering($handle->getName());
+        } else {
+          $object->setOwnerOrdering(null);
+        }
+
+        return $object->setOwnerPHID($phid);
       case ManiphestTransaction::TYPE_CCS:
         return $object->setCCPHIDs($xaction->getNewValue());
       case ManiphestTransaction::TYPE_PROJECTS:
Index: src/infrastructure/storage/patch/PhabricatorBuiltinPatchList.php
===================================================================
--- src/infrastructure/storage/patch/PhabricatorBuiltinPatchList.php
+++ src/infrastructure/storage/patch/PhabricatorBuiltinPatchList.php
@@ -1756,6 +1756,10 @@
         'type' => 'php',
         'name' => $this->getPatchPath('20131112.userverified.2.mig.php'),
       ),
+      '20131118.ownerorder.php' => array(
+        'type' => 'php',
+        'name' => $this->getPatchPath('20131118.ownerorder.php'),
+      ),
     );
   }
 }