DoctrineEntitySniff: do not require setter for property initialized in constructor

Author: javer

Swivl/Sniffs/Commenting/DoctrineEntitySniff.php

@@ -1566,6 +1566,7 @@ private function isPropertySetViaConstructor(string $name): bool
     {
         $members = $this->getInitializedMembers(false);
 
-        return isset($members[$name], $this->constructorParameters[$members[$name]]);
+        return isset($members[$name], $this->constructorParameters[$members[$name]])
+            || (isset($members[$name]) && $members[$name] !== 'null');
     }
 }