[FIX] purchase: RFQ vs PO

Set the appropriate label in the portal depending on the PO state.

opw-1915230

closes odoo/odoo#29477

addons/purchase/i18n/purchase.pot

@@ -1485,6 +1485,7 @@ msgstr ""
 #. module: purchase
 #: code:addons/purchase/models/purchase.py:276
 #: model:ir.actions.report,name:purchase.report_purchase_quotation
+#: model_terms:ir.ui.view,arch_db:purchase.portal_my_purchase_order
 #: model_terms:ir.ui.view,arch_db:purchase.report_purchasequotation_document
 #, python-format
 msgid "Request for Quotation"

addons/purchase/views/portal_templates.xml

@@ -68,7 +68,12 @@
               <div class="row">
                 <div class="col-lg-12">
                   <h4>
-                    Purchase Order
+                    <t t-if="order.state in ['draft', 'sent']">
+                      Request for Quotation
+                    </t>
+                    <t t-else="1">
+                      Purchase Order
+                    </t>
                     <span t-esc="order.name"/>
                   </h4>
                 </div>