Remove Screen.parent hack in attachment

issue5558

issue5558.diff

@@ -0,0 +1,33 @@
+diff -r b38d2dfd7ba4 tryton/tryton/gui/window/attachment.py
+--- a/tryton/tryton/gui/window/attachment.py	Tue Jun 07 11:25:03 2016 +0200
++++ b/tryton/tryton/gui/window/attachment.py	Tue Jun 07 11:26:00 2016 +0200
+@@ -22,7 +22,6 @@
+             ], mode=['tree', 'form'], context=context,
+             exclude_field='resource')
+         screen.search_filter()
+-        screen.parent = record
+         super(Attachment, self).__init__(screen, self.callback,
+             view_type='tree')
+ 
+diff -r b38d2dfd7ba4 tryton/tryton/gui/window/view_form/screen/screen.py
+--- a/tryton/tryton/gui/window/view_form/screen/screen.py	Tue Jun 07 11:25:03 2016 +0200
++++ b/tryton/tryton/gui/window/view_form/screen/screen.py	Tue Jun 07 11:26:00 2016 +0200
+@@ -338,7 +338,8 @@
+                 'ids': [self.id_get()],
+                 }, context=self.context.copy(), warning=False)
+         else:
+-            self.switch_view(view_type='form')
++            if not self.modified():
++                self.switch_view(view_type='form')
+             return True
+ 
+     @property
+@@ -347,8 +348,6 @@
+ 
+     def switch_view(self, view_type=None):
+         if self.current_view:
+-            if not self.parent and self.modified():
+-                return
+             self.current_view.set_value()
+             if (self.current_record and
+                     self.current_record not in self.current_record.group):

series

@@ -105,3 +105,4 @@ issue17151002_80001.diff
 issue5575.diff
 issue5560_22001002.diff
 issue5560_23131003.diff
+issue5558.diff