[IMP] account_avatax_sale_oca: more specific view extension

Author: rvalyi

account_avatax_sale_oca/views/sale_order_view.xml

@@ -63,7 +63,7 @@
                 <field name="calculate_tax_on_save" invisible="1" />
                 <field name="tax_amount" invisible="1" />
             </xpath>
-            <xpath expr="//field[@name='order_line']//list" position="inside">
+            <xpath expr="//field[@name='order_line']/list" position="inside">
                 <field name="tax_amt" groups="base.group_no_one" optional="hide" />
             </xpath>
             <xpath