Small improvement

Author: danog

src/MTProto/MTProtoOutgoingMessage.php

@@ -80,11 +80,6 @@ class MTProtoOutgoingMessage extends MTProtoMessage
      */
     private ?string $serializedBody = null;
 
-    /**
-     * Whether we should refresh references upon serialization of this message.
-     */
-    private bool $refreshReferences = false;
-
     /**
      * When was this message sent.
      */
@@ -114,7 +109,7 @@ public function __construct(
         public readonly string $type,
         public readonly bool $isMethod,
         public readonly bool $unencrypted,
-        public readonly ?SpecialMethodType $specialMethodType,
+        public ?SpecialMethodType $specialMethodType,
         public readonly ?Cancellation $cancellation,
         public readonly ?string $subtype = null,
         /**
@@ -400,6 +395,8 @@ public function setSerializedBody(string $serializedBody): self
     public function refreshReferences(): Future
     {
         $this->serializedBody = null;
+        // To avoid endless loops
+        $this->specialMethodType = SpecialMethodType::FILEREF_RELATED;
 
         return async(function (): ?Closure {
             $this->connection->API->referenceDatabase->refreshNextEnable();