Fixed bug #33404.

word/api.js

@@ -1759,7 +1759,13 @@ background-repeat: no-repeat;\
 	    if (AscCommon.CollaborativeEditing.Get_GlobalLock())
 	        return;
 
-		this.WordControl.m_oLogicDocument.Create_NewHistoryPoint(AscDFH.historydescription_Document_PasteHotKey);
+		var _logicDoc = this.WordControl.m_oLogicDocument;
+		if (!_logicDoc)
+			return;
+
+		if (false === _logicDoc.Document_Is_SelectionLocked(changestype_Paragraph_Content))
+		{
+			_logicDoc.Create_NewHistoryPoint(AscDFH.historydescription_Document_PasteHotKey);
 			switch (_format)
 			{
 				case AscCommon.c_oAscClipboardDataFormat.HtmlElement:
@@ -1771,6 +1777,7 @@ background-repeat: no-repeat;\
 				default:
 					break;
 			}
+		}
 	};
 
 	asc_docs_api.prototype.onSaveCallback = function(e, isUndoRequest)