From 26e28ed4134734dbc86fedb97339eec47282025a Mon Sep 17 00:00:00 2001
From: Ines Montani <ines@ines.io>
Date: Thu, 24 Sep 2020 17:11:13 +0200
Subject: [PATCH] Fix combined scores if multiple components report it

---
 spacy/util.py | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/spacy/util.py b/spacy/util.py
index ad3298651..378ec2823 100644
--- a/spacy/util.py
+++ b/spacy/util.py
@@ -1237,7 +1237,9 @@ def combine_score_weights(
                 weight = 0.0
             else:
                 weight = round(value / total / len(all_weights), 2)
-            result[key] = result.get(key, 0.0) + weight
+            prev_weight = result.get(key, 0.0)
+            prev_weight = 0.0 if prev_weight is None else prev_weight
+            result[key] = prev_weight + weight
     return result