Set view values before testing modified record for translate pop-up

The view values are not always set when the method is triggered by an entry
icon which doesn't grab the focus.

issue5555
review26291002

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

@@ -242,6 +242,7 @@ class TranslateMixin:
         return button
 
     def translate(self, *args):
+        self.view.set_value()
         if self.record.id < 0 or self.record.modified:
             common.message(
                 _('You need to save the record before adding translations!'))