1st chunk:
From 95a73bbc9bd65602a0f9411469ab511bc80a01d0 Mon Sep 17 00:00:00 2001
From: Till Kamppeter <till.kamppeter@gmail.com>
Date: Wed, 3 Oct 2018 15:13:00 +0200
Subject: Call QMessageBox constructors of PyQT5 with the correct parameters
Bug-Debian: https://bugs.debian.org/912768
Bug-Ubuntu: https://bugs.launchpad.net/bugs/1745383

Index: ui5/fabwindow.py
--- ui5/fabwindow.py.orig
+++ ui5/fabwindow.py
@@ -344,7 +344,7 @@ class FABWindow(QMainWindow,  Ui_MainWindow):
             new_name = to_unicode(self.NameLineEdit.text())
             if new_name != self.name:
                 if QMessageBox.question(self, self.__tr("Rename?"), "Rename '%s' to '%s'?"%(self.name,new_name), \
-                                        QMessageBox.Yes | QMessageBox.No) == QMessageBox.Yes:
+                                        QMessageBox.Yes | QMessageBox.No, QMessageBox.No) == QMessageBox.Yes:
 
                     self.db.rename(self.name, new_name)
                     log.debug("Rename %s to %s" % (self.name, new_name))
@@ -518,7 +518,7 @@ class FABWindow(QMainWindow,  Ui_MainWindow):
                          self.__tr("Import fax addresses from LDIF or vCard"),
                          #user_conf.workingDirectory(),
                          self.user_settings.working_dir,
-                         "vCard (*.vcf);;LDIF (*.ldif *.ldi)"))
+                         "vCard (*.vcf);;LDIF (*.ldif *.ldi)")[0])
         result = (eval(result)[0])
         if result:
             working_directory = to_unicode(os.path.dirname(result))
