Simplification

app/Models/User.php

@@ -25,6 +25,10 @@ class User extends DB\SQL\Mapper
 
     public function findPublic(int $id): ?array
     {
+        if ($id <= 0) {
+            return null;
+        }
+
         $this->load(['id = ?', $id]);
         if ($this->dry()) {
             return null;