BUG Unset subquery sort in unlinkDisownedRelationship to avoid except…

…ion on DB Drivers that disallow sub query sort (#325)

* unset sort for subquery if we're using MSSQL

* fix for travis check

* removed conditional sorting and disable sorting of subquery for all DB drivers

* renamed variable since it doesn't contain actual SQL anymore

* Removed unnecessary use statement

src/RecursivePublishable.php

@@ -409,7 +409,9 @@ public function unlinkDisownedRelationship($source, $targetStage, $relationship)
         }
 
         // Query the source for the list of items to NOT remove
-        $ownedSQL = $owner->getComponents($relationship)->sql($ownedParams);
+        $ownedQuery = $owner->getComponents($relationship);
+        // remove sort for sub query because some DB drivers don't let you sort sub queries
+        $ownedSQL = $ownedQuery->dataQuery()->sort(null, null, true)->sql($ownedParams);
         $disowned->addWhere([
             "\"{$targetTable}\".\"ID\" NOT IN (SELECT \"Source\".\"ID\" FROM ({$ownedSQL}) AS \"Source\")" => $ownedParams
         ]);