From ed331bedd6f7c412cbcf552c58da5d7b62846339 Mon Sep 17 00:00:00 2001
From: Juergen Spitzmueller <spitz@lyx.org>
Date: Fri, 23 Feb 2018 07:43:19 +0100
Subject: [PATCH] tex2lyx: do not force default bibliography style if none is
 set

Some classes provide a \bibliographystyle, so we must not output any
\bibliographystyle if none is set in the TeX file.

Fixes: #10673
---
 src/tex2lyx/text.cpp | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/src/tex2lyx/text.cpp b/src/tex2lyx/text.cpp
index 036156927f..00affe0a31 100644
--- a/src/tex2lyx/text.cpp
+++ b/src/tex2lyx/text.cpp
@@ -2477,7 +2477,9 @@ void parse_text(Parser & p, ostream & os, unsigned flags, bool outer,
 	// nocite{*} option (needed for bibtex inset)
 	string btprint;
 	string contentslineContent;
-	string bibliographystyle = "default";
+	// Some classes provide a \bibliographystyle, so do not output
+	// any if none is explicitly set.
+	string bibliographystyle;
 	bool const use_natbib = isProvided("natbib");
 	bool const use_jurabib = isProvided("jurabib");
 	string last_env;
-- 
2.39.5