[IMP] sale: quotation confirmed mail subtype defaults to False

This reverts commit 0130ce4e.

addons/sale/sale_data.xml

@@ -40,7 +40,7 @@
         <record id="mt_order_confirmed" model="mail.message.subtype">
             <field name="name">Sales Order Confirmed</field>
             <field name="res_model">sale.order</field>
-            <field name="default" eval="True"/>
+            <field name="default" eval="False"/>
             <field name="description">Quotation confirmed</field>
         </record>