From 8d2e40d732139fb9aad864d008c14b350d5941a6 Mon Sep 17 00:00:00 2001
From: Pietro Battiston <me@pietrobattiston.it>
Date: Tue, 24 Apr 2018 12:48:14 +0200
Subject: [PATCH] BUG: workaround failure of #17378 on Windows

---
 pandas/core/indexes/base.py | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/pandas/core/indexes/base.py b/pandas/core/indexes/base.py
index 04f5ffe400c09b..b2afb4f41ca916 100644
--- a/pandas/core/indexes/base.py
+++ b/pandas/core/indexes/base.py
@@ -2755,6 +2755,8 @@ def union(self, other):
                                            allow_fill=False)
                 result = _concat._concat_compat((lvals, other_diff))
 
+                # Workaround failure of #17378 on Windows
+                lvals[0] < other_diff[0]
             else:
                 result = lvals