nullable proxies

src/Promise/PromiseMany.php

@@ -50,7 +50,7 @@ public function __construct(ORMInterface $orm, string $target, array $query = []
      */
     public function __loaded(): bool
     {
-        return empty($this->orm);
+        return $this->orm === null;
     }
 
     /**
@@ -78,6 +78,12 @@ public function __resolve()
             return $this->resolved;
         }
 
+        if ($this->query === []) {
+            // nothing to proxy to
+            $this->orm = null;
+            return null;
+        }
+
         foreach ($this->orm->getRepository($this->target)->findAll($this->query + $this->where) as $item) {
             $this->resolved[] = $item;
         }