From 9a32d7b07cac08c23c909fd6096171c9dee34363 Mon Sep 17 00:00:00 2001
From: Juergen Spitzmueller <spitz@lyx.org>
Date: Mon, 12 Apr 2021 09:19:27 +0200
Subject: [PATCH] Mark c&p buffers internal. Cures assertion (#12246)

---
 src/CutAndPaste.cpp | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/src/CutAndPaste.cpp b/src/CutAndPaste.cpp
index b436167308..8941efe71e 100644
--- a/src/CutAndPaste.cpp
+++ b/src/CutAndPaste.cpp
@@ -1225,6 +1225,7 @@ bool pasteClipboardText(Cursor & cur, ErrorList & errorList, bool asParagraphs,
 			// For some strange reason gcc 3.2 and 3.3 do not accept
 			// Buffer buffer(string(), false);
 			Buffer buffer("", false);
+			buffer.setInternal(true);
 			buffer.setUnnamed(true);
 			if (buffer.readString(lyx)) {
 				cur.recordUndo();
@@ -1258,6 +1259,7 @@ bool pasteClipboardText(Cursor & cur, ErrorList & errorList, bool asParagraphs,
 				// For some strange reason gcc 3.2 and 3.3 do not accept
 				// Buffer buffer(string(), false);
 				Buffer buffer("", false);
+				buffer.setInternal(true);
 				buffer.setUnnamed(true);
 				available = buffer.importString(names[i], text, errorList);
 				if (available)