From 889dac7def8036a86cc6ecbac151c34d6cc47b07 Mon Sep 17 00:00:00 2001
From: =?utf8?q?J=C3=BCrgen=20Spitzm=C3=BCller?= <spitz@lyx.org>
Date: Wed, 28 Jun 2023 14:46:46 +0200
Subject: [PATCH] Prevent par break caused by \egroup (#12821)

---
 src/insets/InsetListings.cpp | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/src/insets/InsetListings.cpp b/src/insets/InsetListings.cpp
index 5afc432726..f2b26f0d15 100644
--- a/src/insets/InsetListings.cpp
+++ b/src/insets/InsetListings.cpp
@@ -409,6 +409,10 @@ void InsetListings::latex(otexstream & os, OutputParams const & runparams) const
 		// Switch back
 		switchEncoding(os.os(), buffer().params(),
 			       runparams, *save_enc, true, true);
+        if (!isInline)
+            // Go out of vertical mode. Otherwise \egroup
+            // causes a paragraph break (#12821)
+            os << "\\leavevmode";
 		os << "\\egroup" << breakln;
 		runparams.encoding = save_enc;
 	}
-- 
2.39.5