From 8a4ecc7b96b5922f28af4cf66ab4af3f1dcd21b0 Mon Sep 17 00:00:00 2001
From: Butvin Mihail <butvin.mihail@yandex.ru>
Date: Mon, 31 Oct 2022 09:43:03 +0300
Subject: [PATCH] Fix Handler unregister

Add checking for handler_obj.handler
---
 aiogram/dispatcher/handler.py | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/aiogram/dispatcher/handler.py b/aiogram/dispatcher/handler.py
index e6b89380cb..6fa00c25e3 100644
--- a/aiogram/dispatcher/handler.py
+++ b/aiogram/dispatcher/handler.py
@@ -74,11 +74,12 @@ def unregister(self, handler):
         :param handler: callback
         :return:
         """
+        
         for handler_obj in self.handlers:
-            registered = handler_obj.handler
-            if handler in self.handlers:
-                self.handlers.remove(handler)
+            if handler == handler_obj or handler == handler_obj.handler:
+                self.handlers.remove(handler_obj)
                 return True
+            
         raise ValueError('This handler is not registered!')
 
     async def notify(self, *args):