Index: branches/RC/core/kernel/db/dbitem.php
===================================================================
diff -u -N -r9520 -r9973
--- branches/RC/core/kernel/db/dbitem.php	(.../dbitem.php)	(revision 9520)
+++ branches/RC/core/kernel/db/dbitem.php	(.../dbitem.php)	(revision 9973)
@@ -557,7 +557,11 @@
 	{
 		$res = true;
 		if (isset($params['required']) && $params['required']) {
-			$res = ((string)$this->FieldValues[$field] != '');
+			$check_value = $this->FieldValues[$field];
+			if ($this->Application->ConfigValue('TrimRequiredFields')) {
+				$check_value = trim($check_value);
+			}
+			$res = ((string)$check_value != '');
 		}
 
 		$options = $this->GetFieldOptions($field);