Config import breaks on protected entity properties

eyup

+++ b/core/modules/config/lib/Drupal/config/Tests/ConfigImportUITest.php
@@ -128,4 +129,22 @@ function prepareSiteNameUpdate($new_site_name) {
+  /**
+   * Tests updating existing configuration.
+   */
+  public function testUpdate() {
+    // Create a staged version of the configuration object with different data.

Why is this part of the UI test?

Let's move it into the API import test.

+++ b/core/modules/config/tests/config_test/config/config_test.dynamic.default.yml
@@ -1,2 +1,3 @@
+description: Default

+++ b/core/modules/config/tests/config_test/lib/Drupal/config_test/Plugin/Core/Entity/ConfigTest.php
@@ -62,4 +62,25 @@ class ConfigTest extends ConfigEntityBase {
+  protected $description;

Can we rename this property to 'protected_property', please?

Also, can we make sure to check for existing issues first? :)

Marked #1892558: Fatal error when importing a view, using set() rather than accessing properties directly might work as duplicate.

Thanks, looks great. :)

Committed and pushed to 8.x. Thanks!