From 02fda5a85bc126a43ffeacb27eca1e0733c9e5fe Mon Sep 17 00:00:00 2001
From: SomberNight <somber.night@protonmail.com>
Date: Sun, 17 Dec 2017 21:11:25 +0100
Subject: [PATCH] fix: crash when closing qrscanner window (see #3546)

---
 gui/qt/qrtextedit.py | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/gui/qt/qrtextedit.py b/gui/qt/qrtextedit.py
index 42d999c00..9e7e3ba6c 100644
--- a/gui/qt/qrtextedit.py
+++ b/gui/qt/qrtextedit.py
@@ -56,6 +56,8 @@ class ScanQRTextEdit(ButtonsTextEdit, MessageBoxMixin):
         except BaseException as e:
             self.show_error(str(e))
             data = ''
+        if not data:
+            data = ''
         self.setText(data)
         return data