From a37fa622d077bedf61e0698b990a86feb0e49641 Mon Sep 17 00:00:00 2001
From: engisalor <50170623+engisalor@users.noreply.github.com>
Date: Tue, 6 Dec 2022 14:41:28 +0100
Subject: [PATCH] fix(util): nan_to_none return a series of [None]

---
 corpusama/util/convert.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/corpusama/util/convert.py b/corpusama/util/convert.py
index a6f317f..df2a7c3 100644
--- a/corpusama/util/convert.py
+++ b/corpusama/util/convert.py
@@ -66,7 +66,7 @@ def nan_to_none(
     if series.any():
         series = series.replace(to_replace=bad_NAs, value=None, regex=True)
     else:
-        series = [None for x in series]
+        series = pd.Series([None for x in series], dtype=object)
     return series