[18.0][FIX] correct readonly condition in sale order views

Author: andrel-exo

sale_analytic/views/sale_order_views.xml

@@ -10,7 +10,7 @@
                     name="analytic_distribution"
                     widget="analytic_distribution"
                     groups="analytic.group_analytic_accounting"
-                    readonly="state in ('done', 'cancel')"
+                    readonly="state == 'cancel' or locked"
                 />
             </xpath>
             <field name="order_line" position="attributes">