Use the latest transaction modification time fore the hash

scripts/bake/bake.php

@@ -240,7 +240,7 @@ function GetRevisionHash($revision) {
   $xaction = id(new DifferentialTransactionQuery())
     ->setViewer($viewer)
     ->withObjectPHIDs(array($revision->getPHID()))
-    ->setOrder('newest')
+    ->setOrder('updated')
     ->setLimit(1)
     ->executeOne();
 
@@ -405,7 +405,7 @@ function GetTaskHash($task) {
   $xaction = id(new ManiphestTransactionQuery())
     ->setViewer($viewer)
     ->withObjectPHIDs(array($task->getPHID()))
-    ->setOrder('newest')
+    ->setOrder('updated')
     ->setLimit(1)
     ->executeOne();
 

src/applications/transactions/query/PhabricatorApplicationTransactionQuery.php

@@ -304,6 +304,7 @@ abstract class PhabricatorApplicationTransactionQuery
   protected function newPagingMapFromPartialObject($object) {
     return parent::newPagingMapFromPartialObject($object) + array(
       'created' => $object->getDateCreated(),
+      'updated' => $object->getDateModified(),
       'phid' => $object->getPHID(),
     );
   }
@@ -314,6 +315,10 @@ abstract class PhabricatorApplicationTransactionQuery
         'vector' => array('created', 'phid'),
         'name' => pht('Global'),
       ),
+      'updated' => array(
+        'vector' => array('updated', 'id'),
+        'name' => pht('Date Updated (Latest First)'),
+      ),
     );
   }
 
@@ -324,6 +329,11 @@ abstract class PhabricatorApplicationTransactionQuery
         'column' => 'dateCreated',
         'type' => 'int',
       ),
+      'updated' => array(
+        'table' => 'x',
+        'column' => 'dateModified',
+        'type' => 'int',
+      ),
       'phid' => array(
         'table' => 'x',
         'column' => 'phid',