[FIX] web: use correct avatar field for many2many_tags_avatar field widget

The issue has occurred after rename image fields https://github.com/odoo/odoo/commit/58a2ffa26f1a3b0f9630ce16d11b758d18e20a21

closes odoo/odoo#35596

Signed-off-by: Aaron Bohy (aab) <aab@odoo.com>

addons/web/static/src/js/fields/relational_fields.js

@@ -2240,7 +2240,7 @@ var FieldMany2ManyTagsAvatar = FieldMany2ManyTags.extend({
     _getRenderTagsContext: function () {
         var result = this._super.apply(this, arguments);
         result.avatarModel = this.nodeOptions.avatarModel || this.field.relation;
-        result.avatarField = this.nodeOptions.avatarField || 'image';
+        result.avatarField = this.nodeOptions.avatarField || 'image_64';
         return result;
     },
 });

addons/web/static/tests/fields/relational_fields_tests.js

@@ -1847,6 +1847,28 @@ QUnit.module('relational_fields', {
         form.destroy();
     });
 
+    QUnit.test('widget many2many_tags_avatar', async function (assert) {
+        assert.expect(2);
+
+        var form = await createView({
+            View: FormView,
+            model: 'turtle',
+            data: this.data,
+            arch: '<form>' +
+                    '<sheet>' +
+                        '<field name="partner_ids" widget="many2many_tags_avatar"/>' +
+                    '</sheet>' +
+                '</form>',
+            res_id: 2,
+        });
+
+        assert.containsN(form, '.o_field_many2manytags.avatar.o_field_widget .badge', 2, "should have 2 records");
+        assert.strictEqual(form.$('.o_field_many2manytags.avatar.o_field_widget .badge:first img').data('src'), '/web/image/partner/2/image_64',
+            "should have correct avatar image");
+
+        form.destroy();
+    });
+
     QUnit.module('FieldRadio');
 
     QUnit.test('fieldradio widget on a many2one in a new record', async function (assert) {