From 1ab379af36f07b0123f51c6856272d3ab06ba177 Mon Sep 17 00:00:00 2001
From: andresmmera <andresmmera@protonmail.com>
Date: Fri, 18 Oct 2024 19:47:10 +0200
Subject: [PATCH] Fix: The tool crashed if it has traces and a session file is
 loaded

Before loading a session file it is needed to clear the current dataset and traces.
---
 qucs-s-spar-viewer/qucs-s-spar-viewer.cpp | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/qucs-s-spar-viewer/qucs-s-spar-viewer.cpp b/qucs-s-spar-viewer/qucs-s-spar-viewer.cpp
index 38842c83..f5adc294 100644
--- a/qucs-s-spar-viewer/qucs-s-spar-viewer.cpp
+++ b/qucs-s-spar-viewer/qucs-s-spar-viewer.cpp
@@ -2415,8 +2415,9 @@ void Qucs_S_SPAR_Viewer::dropEvent(QDropEvent *event)
     if (!fileList.isEmpty()) {
       // Check if this is a session file
       if (fileList.size() == 1){
-        if (fileList.first().endsWith(".spar", Qt::CaseInsensitive)) {
-          // Then open it as a session settings file.
+        if (fileList.first().endsWith(".spar", Qt::CaseInsensitive)) {// Then open it as a session settings file.
+          // Remove traces and the dataset from the current session before loading the session file
+          removeAllFiles();
           loadSession(fileList.first());
           this->activateWindow();
           return;