[FIX] purchase: display only one shipping address

The warehouse location is the fallback value
Fixes #4056

addons/purchase/views/report_purchaseorder.xml

@@ -14,7 +14,7 @@
                         <p t-if="o.partner_id.vat">VAT: <span t-field="o.partner_id.vat"/></p>
                     </div>
 
-                    <div t-if="o.picking_type_id and o.picking_type_id.warehouse_id">
+                    <div t-if="not o.dest_address_id and o.picking_type_id and o.picking_type_id.warehouse_id">
                         <span t-field="o.picking_type_id.warehouse_id.name"/>
                         <div t-field="o.picking_type_id.warehouse_id.partner_id"
                             t-field-options='{"widget": "contact", "fields": ["address", "phone", "fax"], "no_marker": true}'/>

addons/purchase/views/report_purchasequotation.xml

@@ -14,7 +14,7 @@
                             t-field-options='{"widget": "contact", "fields": ["address", "name", "phone", "fax"], "no_marker": true}'/>
                         <p t-if="o.partner_id.vat">VAT: <span t-field="o.partner_id.vat"/></p>
                     </div>
-                    <div t-if="o.picking_type_id.warehouse_id">
+                    <div t-if="not o.dest_address_id and o.picking_type_id.warehouse_id">
                         <span t-field="o.picking_type_id.warehouse_id.name"/>
                         <div t-field="o.picking_type_id.warehouse_id.partner_id"
                             t-field-options='{"widget": "contact", "fields": ["address", "phone", "fax"], "no_marker": true}'/>