From a2e64b4e0bae4e1be2cd8fd77d96a1b9103dff93 Mon Sep 17 00:00:00 2001
From: Travis Ralston <travpc@gmail.com>
Date: Fri, 19 Apr 2019 23:42:11 -0600
Subject: [PATCH] Use empty collections when clearing portals/contacts instead
 of None

This avoids an error when logging out regarding "NoneType is not iterable".
---
 mautrix_telegram/db/user.py | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/mautrix_telegram/db/user.py b/mautrix_telegram/db/user.py
index ba304894..61b39263 100644
--- a/mautrix_telegram/db/user.py
+++ b/mautrix_telegram/db/user.py
@@ -106,8 +106,8 @@ class User(Base):
 
     def delete(self) -> None:
         super().delete()
-        self.portals = None
-        self.contacts = None
+        self.portals = []
+        self.contacts = []
 
 
 class UserPortal(Base):