deferred_style: save Localizer selected language earlier

This is manual cherry=pick of 9debeb6e,
due to BT5 format change.

bt5/erp5_deferred_style/SkinTemplateItem/portal_skins/erp5_deferred_style_core/Base_activateReport.xml

@@ -91,6 +91,7 @@ for k, v in request.items():\n
     request_other[k] = v\n
 \n
 \n
+localizer_language = portal.Localizer.get_selected_language()\n
 \n
 context.activate(activity="SQLQueue", tag=tag, \n
   priority=priority).Base_computeReportSection(\n
@@ -100,7 +101,8 @@ context.activate(activity="SQLQueue", tag=tag, \n
     tag=tag,\n
     skin_name=skin_name, \n
     format=format,\n
-    priority=priority, \n
+    priority=priority,\n
+    localizer_language=localizer_language,\n
     **kw)\n
 \n
 context.activate(activity=\'SQLQueue\', after_tag=tag).getTitle()\n

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

@@ -82,7 +82,6 @@ for k, v in request.items():\n
       continue\n
     request_other[k] = v\n
 \n
-localizer_language = portal.Localizer.get_selected_language()\n
 active_process = portal.portal_activities.newActiveProcess()\n
 \n
 for idx, report_section in enumerate(report_section_list):\n
@@ -120,7 +119,7 @@ activity_context.activate(activity=\'SQLQueue\', after_tag=tag, priority=priorit
         </item>
         <item>
             <key> <string>_params</string> </key>
-            <value> <string>form, request_other, user_name, tag, skin_name, format, priority, **kw</string> </value>
+            <value> <string>form, request_other, user_name, tag, skin_name, format, priority, localizer_language, **kw</string> </value>
         </item>
         <item>
             <key> <string>_proxy_roles</string> </key>