[FIX] Avoid error "The record has been modified, your changes will be discarded. Are you sure you want to leave this page ?"

intrastat_product/views/intrastat_product_declaration.xml

@@ -32,7 +32,7 @@
             </div>
             <group name="top-block">
               <group name="properties-1">
-                <field name="year" widget="char"/>
+                <field name="year"/>
                 <field name="month"/>
                 <field name="type"/>
                 <field name="reporting_level" invisible="1"/>