From 2f24e3f5e26737c682079d0f56c5ab58b81e6bf8 Mon Sep 17 00:00:00 2001
From: Damien Elmes <gpg@ankiweb.net>
Date: Wed, 11 Mar 2020 15:18:28 +1000
Subject: [PATCH] don't error when an add-on passes None to CardStats

https://anki.tenderapp.com/discussions/beta-testing/1842-syncing-message
---
 pylib/anki/stats.py | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/pylib/anki/stats.py b/pylib/anki/stats.py
index cbbf4f20d..c8ffa2c0b 100644
--- a/pylib/anki/stats.py
+++ b/pylib/anki/stats.py
@@ -25,7 +25,8 @@ PERIOD_LIFE = 2
 
 class CardStats:
     def __init__(self, col: anki.storage._Collection, card: anki.cards.Card) -> None:
-        self.col = col.weakref()
+        if col:
+            self.col = col.weakref()
         self.card = card
         self.txt = ""