[FIX] web: Form: display button box in create mode

Before this rev., the button box wasn't displayed on new (not saved
yet) records. This wasn't the case before the new views.

This is a problem in lunch, as the lunch.order form view is opened
in create mode, and the balance is displayed in the button box.

addons/web/static/src/js/views/form/form_renderer.js

@@ -246,10 +246,6 @@ var FormRenderer = BasicRenderer.extend({
     _renderButtonBox: function (node) {
         var self = this;
         var $result = $('<' + node.tag + '>', { 'class': 'o_not_full' });
-        // Avoid to show buttons if we are in create mode (edit mode without res_id)
-        if (this.mode === 'edit' && !this.state.res_id) {
-            return $result;
-        }
         var buttons = _.map(node.children, function (child) {
             if (child.tag === 'button') {
                 return self._renderStatButton(child);

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

@@ -2642,7 +2642,7 @@ QUnit.module('Views', {
         form.destroy();
     });
 
-    QUnit.test('button box is not rendered in create mode', function (assert) {
+    QUnit.test('button box is rendered in create mode', function (assert) {
         assert.expect(3);
 
         var form = createView({
@@ -2672,8 +2672,8 @@ QUnit.module('Views', {
         // create mode (leave edition first!)
         form.$buttons.find('.o_form_button_cancel').click();
         form.$buttons.find('.o_form_button_create').click();
-        assert.strictEqual(form.$('.oe_stat_button').length, 0,
-            "button box should not be displayed when creating a new record");
+        assert.strictEqual(form.$('.oe_stat_button').length, 1,
+            "button box should be displayed when creating a new record as well");
 
         form.destroy();
     });