From cf650e061e14cacb1e55d3a5e330730f99360ebf Mon Sep 17 00:00:00 2001
From: Lonami Exo <totufals@hotmail.com>
Date: Thu, 8 Mar 2018 20:18:10 +0100
Subject: [PATCH] Avoid editing events.NewMessage that are forwards

---
 telethon/events/__init__.py | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/telethon/events/__init__.py b/telethon/events/__init__.py
index 8bf7b51c..1bd9b8e7 100644
--- a/telethon/events/__init__.py
+++ b/telethon/events/__init__.py
@@ -340,6 +340,8 @@ class NewMessage(_EventBuilder):
             Returns ``None`` if the message was incoming,
             or the edited message otherwise.
             """
+            if self.message.fwd_from:
+                return None
             if not self.message.out:
                 if not isinstance(self.message.to_id, types.PeerUser):
                     return None