Fix xxx2many WinSearch callback

Typo was introduced in changeset 4d0d16477712

tryton/gui/window/view_form/view/form_gtk/many2many.py

@@ -141,12 +141,11 @@ class Many2Many(WidgetInterface):
             return False
 
         def callback(result):
-            res_id = None
-            if result:
-                res_id, _ = result[0]
             self.focus_out = True
-            self.screen.load(ids, modified=True)
-            self.screen.display(res_id=res_id)
+            if result:
+                ids = [x[0] for x in result]
+                self.screen.load(ids, modified=True)
+                self.screen.display(res_id=ids[0])
             self.screen.set_cursor()
             self.wid_text.set_text('')
         if len(ids) != 1 or not value:

tryton/gui/window/view_form/view/form_gtk/one2many.py

@@ -323,11 +323,10 @@ class One2Many(WidgetInterface):
             return False
 
         def callback(result):
-            res_id = None
             if result:
-                res_id, = result[0]
-            self.screen.load(ids, modified=True)
-            self.screen.display(res_id=res_id)
+                ids = [x[0] for x in result]
+                self.screen.load(ids, modified=True)
+                self.screen.display(res_id=ids[0])
             self.screen.set_cursor()
             self.wid_text.set_text('')
         if len(ids) != 1: