Reset also the session_id when reset

bt5/erp5_commerce/SkinTemplateItem/portal_skins/erp5_commerce/WebSection_resetShoppingCart.xml

@@ -59,6 +59,7 @@ request = context.REQUEST\n
 if session_id is None: \n
   session_id = request.get(\'session_id\', None)\n
 \n
+request.RESPONSE.expireCookie(\'session_id\')\n
 return context.portal_sessions.manage_delObjects(session_id)\n
 </string> </value>
         </item>

bt5/erp5_commerce/bt/revision

-318
+319
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