[FIX] web: handle correctly deactivation of duplicate option

This new behavior has been introduced by previous forward-port.

addons/web/static/src/js/views/abstract_view.js

@@ -85,6 +85,7 @@ var AbstractView = Class.extend({
                 edit: viewInfo.arch.attrs.edit ? JSON.parse(viewInfo.arch.attrs.edit) : true,
                 create: viewInfo.arch.attrs.create ? JSON.parse(viewInfo.arch.attrs.create) : true,
                 delete: viewInfo.arch.attrs.delete ? JSON.parse(viewInfo.arch.attrs.delete) : true,
+                duplicate: viewInfo.arch.attrs.duplicate ? JSON.parse(viewInfo.arch.attrs.duplicate) : true,
             },
             noContentHelp: params.action && params.action.help,
         };

addons/web/static/tests/views/form_tests.js

@@ -1421,6 +1421,33 @@ QUnit.module('Views', {
         form.destroy();
     });
 
+    QUnit.test('cannot duplicate a record', function (assert) {
+        assert.expect(2);
+
+        var form = createView({
+            View: FormView,
+            model: 'partner',
+            data: this.data,
+            arch: '<form string="Partners" duplicate="false">' +
+                        '<field name="foo"/>' +
+                '</form>',
+            res_id: 1,
+            viewOptions: {sidebar: true},
+            mockRPC: function (route, args) {
+                if (args.method === 'search_read' && args.model === 'ir.attachment') {
+                    return $.when([]);
+                }
+                return this._super.apply(this, arguments);
+            },
+        });
+
+        assert.strictEqual(form.get('title'), 'first record',
+            "should have the display name of the record as  title");
+        assert.ok(form.sidebar.$('a:contains(Duplicate)').length === 0,
+            "should not contains a 'Duplicate' action");
+        form.destroy();
+    });
+
     QUnit.test('buttons in footer are moved to $buttons if necessary', function (assert) {
         // not sure about this test...
         assert.expect(2);