Fix issue when getting anonymous sender

gramjs/tl/custom/message.ts

@@ -216,8 +216,7 @@ export class Message extends Mixin(SenderGetter, ChatGetter) {
         }
 
         if (this.fwdFrom) {
-            // todo fix this
-            //  this._forward = new Forward(this._client, this.fwdFrom, this.entities)
+            this._forward = new Forward(this._client, this.fwdFrom, entities);
         }
 
         if (this.action) {

gramjs/tl/custom/senderGetter.ts

@@ -49,9 +49,7 @@ export class SenderGetter {
                 await this._refetchSender();
             }
         }
-        if (!this._sender) {
-            throw new Error("Could not find sender");
-        }
+
         return this._sender;
     }