From bbb0473cd0aceea25b624bd2e89b3f04d08bb672 Mon Sep 17 00:00:00 2001
From: "Olivier Wilkinson (reivilibre)" <olivier@librepush.net>
Date: Thu, 5 Aug 2021 15:43:39 +0100
Subject: Fix type error

---
 synapse/storage/state.py | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/synapse/storage/state.py b/synapse/storage/state.py
index c91f0de58e..da334fc966 100644
--- a/synapse/storage/state.py
+++ b/synapse/storage/state.py
@@ -113,7 +113,10 @@ class StateFilter:
             type_dict.setdefault(typ, set()).add(s)  # type: ignore
 
         return StateFilter(
-            types=frozendict((k, frozenset(v)) for k, v in type_dict.items())
+            types=frozendict(
+                (k, frozenset(v) if v is not None else None)
+                for k, v in type_dict.items()
+            )
         )
 
     @staticmethod
-- 
cgit 1.5.1