diff --git a/core/dbobject.class.php b/core/dbobject.class.php
index 52deb38685..2d627b6813 100644
--- a/core/dbobject.class.php
+++ b/core/dbobject.class.php
@@ -2311,7 +2311,6 @@ private function GetUniquenessRuleGenericMessage(string $sCurrentClass, string $
 	protected function HasObjectsInDbForUniquenessRule($sUniquenessRuleId, $aUniquenessRuleProperties)
 	{
 		$oUniquenessQuery = $this->GetSearchForUniquenessRule($sUniquenessRuleId, $aUniquenessRuleProperties);
-		$oUniquenessQuery->AllowAllData();
 		$oUniquenessDuplicates = new DBObjectSet($oUniquenessQuery);
 		$bHasDuplicates = $oUniquenessDuplicates->CountExceeds(0);
 
@@ -2357,6 +2356,8 @@ protected function GetSearchForUniquenessRule($sUniquenessRuleId, $aUniquenessRu
 			$oUniquenessQuery->AddConditionForInOperatorUsingParam('finalclass', $aChildClassesWithRuleDisabled, false);
 		}
 
+		$oUniquenessQuery->AllowAllData();
+
 		return $oUniquenessQuery;
 	}