From fb02ad5e680a4490a68e0aea02cdb15d0391b8a1 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?C=C3=A9dric=20Krier?= <ced@b2ck.com>
Date: Fri, 15 Apr 2011 17:09:10 +0200
Subject: [PATCH] Add check for drop into itself for issue1948

---
 tryton/gui/window/view_form/view/list.py | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/tryton/gui/window/view_form/view/list.py b/tryton/gui/window/view_form/view/list.py
index 97a7179733..be12c96957 100644
--- a/tryton/gui/window/view_form/view/list.py
+++ b/tryton/gui/window/view_form/view/list.py
@@ -560,6 +560,8 @@ class ViewList(ParserView):
         def check_recursion(from_, to):
             if not from_ or not to:
                 return True
+            if from_ == to:
+                return False
             length = min(len(from_), len(to))
             if len(from_) < len(to) and from_[:length] == to[:length]:
                 return False