From a09c17080841ce8f299c814e0307fec32794ebe1 Mon Sep 17 00:00:00 2001
From: Keewis <keewis@posteo.de>
Date: Fri, 31 Jul 2020 19:16:13 +0200
Subject: [PATCH] skip whitespace only tokens

---
 sphinx/ext/napoleon/docstring.py | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/sphinx/ext/napoleon/docstring.py b/sphinx/ext/napoleon/docstring.py
index ee4df271c..36c713170 100644
--- a/sphinx/ext/napoleon/docstring.py
+++ b/sphinx/ext/napoleon/docstring.py
@@ -810,6 +810,9 @@ def _recombine_set_tokens(tokens: List[str]) -> List[str]:
                 previous_token = token
                 continue
 
+            if not token.strip():
+                continue
+
             if token in keywords:
                 tokens.appendleft(token)
                 if previous_token is not None: