deferred_style: call report method with user language

Some report sections may be using translation.

bt5/erp5_deferred_style/SkinTemplateItem/portal_skins/erp5_deferred_style_core/Base_computeReportSection.py

@@ -5,14 +5,15 @@ form = context.restrictedTraverse(form)
 request = container.REQUEST
 request.other.update(request_other)
 
-if form.meta_type == 'ERP5 Report':
+with portal.Localizer.translationContext(localizer_language):
+  if form.meta_type == 'ERP5 Report':
     report_section_list = getattr(context, form.report_method)()
-elif form.meta_type == 'ERP5 Form':
+  elif form.meta_type == 'ERP5 Form':
     report_section_list = []
     for field in form.get_fields():
       if field.getRecursiveTemplateField().meta_type == 'ReportBox':
         report_section_list.extend(field.render())
-else:
+  else:
     raise ValueError, 'form meta_type (%r) unknown' %(form.meta_type,)
 
 # Rebuild request_other as report section can have modify request content