From c2395869ff7860bb2c7f080fd6c097e299ea58bf Mon Sep 17 00:00:00 2001
From: Bryan Newbold <bnewbold@robocracy.org>
Date: Wed, 23 Jun 2021 19:49:36 -0700
Subject: fixes for newer ref index

---
 python/fatcat_tools/references.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'python/fatcat_tools')

diff --git a/python/fatcat_tools/references.py b/python/fatcat_tools/references.py
index 7e1f4f71..976967d4 100644
--- a/python/fatcat_tools/references.py
+++ b/python/fatcat_tools/references.py
@@ -68,7 +68,7 @@ class BiblioRef(BaseModel):
     # skipped: target_wikipedia_article
 
     # crossref, pubmed, grobid, etc
-    match_provenance: str
+    match_provenance: Optional[str]
     # strong, weak, etc
     match_status: Optional[str]
     # TODO: "match_strength"?
-- 
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