Fix - Filtration with join: There is no component aliased by [ x] in …

…the Query

src/Knp/Component/Pager/Event/Subscriber/Filtration/Doctrine/ORM/Query/WhereWalker.php

@@ -51,7 +51,7 @@ public function walkSelectStatement(SelectStatement $AST)
             $parts = explode('.', $column);
             $field = end($parts);
             if (2 <= count($parts)) {
-                $alias = reset($parts);
+                $alias = trim(reset($parts));
                 if (!array_key_exists($alias, $components)) {
                     throw new \UnexpectedValueException("There is no component aliased by [{$alias}] in the given Query");
                 }