diff --git a/addons/web/static/src/views/fields/relational_utils.js b/addons/web/static/src/views/fields/relational_utils.js
index 361a00372a5..268a9432653 100644
--- a/addons/web/static/src/views/fields/relational_utils.js
+++ b/addons/web/static/src/views/fields/relational_utils.js
@@ -587,6 +587,7 @@ export class X2ManyFieldDialog extends Component {
             if (await this.record.checkValidity({ displayNotification: true })) {
                 await this.props.save(this.record);
                 if (saveAndNew) {
+                    await this.record.switchMode("readonly");
                     this.record = await this.props.addNew();
                 }
             } else {
diff --git a/addons/web/static/tests/views/fields/one2many_field_tests.js b/addons/web/static/tests/views/fields/one2many_field_tests.js
index 57a0400d7f4..9ab9c75b3e2 100644
--- a/addons/web/static/tests/views/fields/one2many_field_tests.js
+++ b/addons/web/static/tests/views/fields/one2many_field_tests.js
@@ -9846,7 +9846,7 @@ QUnit.module("Fields", (hooks) => {
                 <form>
                     <field name="p">
                         <tree>
-                            <field name="display_name"/>
+                            <field name="display_name" widget="char" class="do_not_remove_widget_char"/>
                         </tree>
                         <form>
                             <field name="display_name"/>