From c984fd411b432b419702a7975842c69f82a701b3 Mon Sep 17 00:00:00 2001
From: Nathan Tien You <nathan.tien-you@univ-grenoble-alpes.fr>
Date: Tue, 17 Dec 2024 14:47:21 +0000
Subject: [PATCH] fix: set jats title lang to undefined by default

---
 src/ptf/cmds/xml/jats/builder/issue.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/ptf/cmds/xml/jats/builder/issue.py b/src/ptf/cmds/xml/jats/builder/issue.py
index 6f00c8ed0..b4c321351 100644
--- a/src/ptf/cmds/xml/jats/builder/issue.py
+++ b/src/ptf/cmds/xml/jats/builder/issue.py
@@ -55,7 +55,7 @@ def get_title_xml(title: str, trans_title=None, trans_lang=None, with_tex_values
     return xml
 
 
-def get_issue_title_xml(title: str, lang: str, trans_title=None, trans_lang=None):
+def get_issue_title_xml(title: str, lang: str = "und", trans_title=None, trans_lang=None):
     """
     Get the title_xml given a simple title
     """
-- 
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