Index: core/kernel/db/dbitem.php
IDEA additional info:
Subsystem: com.intellij.openapi.diff.impl.patch.CharsetEP
<+>UTF-8
===================================================================
--- core/kernel/db/dbitem.php	(revision 16027)
+++ core/kernel/db/dbitem.php	(revision )
@@ -769,15 +769,7 @@
 		$this->saveCustomFields();
 		$this->raiseEvent('OnAfterItemUpdate');
 
-		if ( !isset($update_fields) ) {
-			$this->OriginalFieldValues = $this->FieldValues;
-		}
-		else {
-			foreach ($update_fields as $update_field) {
-				$this->OriginalFieldValues[$update_field] = $this->FieldValues[$update_field];
-			}
-		}
-
+		// Preserve OriginalFieldValues during recursive Update() method calls.
 		$this->Loaded = true;
 
 		if ( !$this->IsTempTable() ) {