From 06f6f598a29904e34e622f5e834b3554dcfa074a Mon Sep 17 00:00:00 2001
From: Qua-non <akshayaurora@gmail.com>
Date: Tue, 7 Aug 2012 02:58:39 +0530
Subject: [PATCH] UIX:ScreenManager: ensure screen is orphaned before before
 adding it to screenmanager

---
 kivy/uix/screenmanager.py | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/kivy/uix/screenmanager.py b/kivy/uix/screenmanager.py
index 927efb905..2d451002c 100644
--- a/kivy/uix/screenmanager.py
+++ b/kivy/uix/screenmanager.py
@@ -580,6 +580,9 @@ class ScreenManager(FloatLayout):
             self.current = screen.name
 
     def real_add_widget(self, *l):
+        # ensure screen is removed from it's previous parent before adding'
+        if l[0].parent:
+            l[0].parent.remove_widget(l[0])
         super(ScreenManager, self).add_widget(*l)
 
     def real_remove_widget(self, *l):