From 6dd990560e439dd8a1c07230519033253e1ce77c Mon Sep 17 00:00:00 2001
From: Juergen Spitzmueller <spitz@lyx.org>
Date: Mon, 29 Jun 2020 12:51:15 +0200
Subject: [PATCH] Do not paste \t when pasting multiple table columns outside
 table (#4449)

---
 src/CutAndPaste.cpp | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/src/CutAndPaste.cpp b/src/CutAndPaste.cpp
index 86e2432947..f002de009a 100644
--- a/src/CutAndPaste.cpp
+++ b/src/CutAndPaste.cpp
@@ -1096,7 +1096,9 @@ void copySelection(Cursor const & cur, docstring const & plaintext)
 		Paragraph par;
 		BufferParams const & bp = cur.buffer()->params();
 		par.setLayout(bp.documentClass().plainLayout());
-		par.insert(0, plaintext, Font(), Change(Change::UNCHANGED));
+		// Replace (column-separating) tabs by space (#4449)
+		docstring const clean_text = subst(plaintext, '\t', ' ');
+		par.insert(0, clean_text, Font(), Change(Change::UNCHANGED));
 		pars.push_back(par);
 		theCuts.push(make_pair(pars, bp.documentClassPtr()));
 	} else {
-- 
2.39.5