fix: test empty parameter against null (#6852)

fixes #6844

Author: soyuka

src/Doctrine/Odm/Extension/ParameterExtension.php

@@ -36,7 +36,7 @@ public function __construct(private readonly ContainerInterface $filterLocator)
     private function applyFilter(Builder $aggregationBuilder, ?string $resourceClass = null, ?Operation $operation = null, array &$context = []): void
     {
         foreach ($operation->getParameters() ?? [] as $parameter) {
-            if (!($v = $parameter->getValue()) || $v instanceof ParameterNotFound) {
+            if (null === ($v = $parameter->getValue()) || $v instanceof ParameterNotFound) {
                 continue;
             }
 

src/Doctrine/Orm/Extension/ParameterExtension.php

@@ -41,7 +41,7 @@ public function __construct(private readonly ContainerInterface $filterLocator)
     private function applyFilter(QueryBuilder $queryBuilder, QueryNameGeneratorInterface $queryNameGenerator, string $resourceClass, ?Operation $operation = null, array $context = []): void
     {
         foreach ($operation?->getParameters() ?? [] as $parameter) {
-            if (!($v = $parameter->getValue()) || $v instanceof ParameterNotFound) {
+            if (null === ($v = $parameter->getValue()) || $v instanceof ParameterNotFound) {
                 continue;
             }