From 8edf59e5654e65d8edfa7e20ba7656a120fbc5eb Mon Sep 17 00:00:00 2001
From: Lonami <totufals@hotmail.com>
Date: Wed, 13 May 2020 18:50:37 +0200
Subject: [PATCH] comment

---
 telethon/client/users.py | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/telethon/client/users.py b/telethon/client/users.py
index ddba8ea9..49592494 100644
--- a/telethon/client/users.py
+++ b/telethon/client/users.py
@@ -92,6 +92,8 @@ class UserMethods:
                 self._flood_waited_requests\
                     [request.CONSTRUCTOR_ID] = time.time() + e.seconds
 
+                # In test servers, FLOOD_WAIT_0 has been observed, and sleeping for
+                # such a short amount will cause retries very fast leading to issues.
                 if e.seconds == 0:
                     e.seconds = 1