From e24392231c68bb7291149dd6aad69f05d8e12e73 Mon Sep 17 00:00:00 2001
From: Damien Elmes <dae@users.noreply.github.com>
Date: Wed, 15 Sep 2021 20:00:35 +1000
Subject: [PATCH] Merge pull request #1370 from evandroforks/add_missing_none

Fix previous card attribute not initialized
---
 qt/aqt/reviewer.py | 1 +
 1 file changed, 1 insertion(+)

diff --git a/qt/aqt/reviewer.py b/qt/aqt/reviewer.py
index fd9b64eb2..c32aedf60 100644
--- a/qt/aqt/reviewer.py
+++ b/qt/aqt/reviewer.py
@@ -119,6 +119,7 @@ class Reviewer:
         self.web = mw.web
         self.card: Optional[Card] = None
         self.cardQueue: List[Card] = []
+        self.previous_card: Optional[Card] = None
         self.hadCardQueue = False
         self._answeredIds: List[CardId] = []
         self._recordedAudio: Optional[str] = None