Fixing a bug in password_asker

Fixed a bug where the qlineedit of the password_asker was already fill
even if the user didnt want to remember the password

src/cutecoin/gui/password_asker.py

@@ -28,6 +28,7 @@ class PasswordAskerDialog(QDialog, Ui_PasswordAskerDialog):
         self.remember = False
 
     def ask(self):
+        self.edit_password.setText("")
         if not self.remember:
             self.exec_()
             pwd = self.password