Issue #3005049 by eiriksm: ImageCanvasEditorWidget::$pluginManager is not declared and commented

src/Plugin/Field/FieldWidget/ImageCanvasEditorWidget.php

@@ -23,6 +23,13 @@ use Symfony\Component\DependencyInjection\ContainerInterface;
  */
 class ImageCanvasEditorWidget extends ImageWidget {
 
+  /**
+   * Image editor plugin manager.
+   *
+   * @var \Drupal\image_canvas_editor_api\Plugin\EditorPluginManager
+   */
+  protected $pluginManager;
+
   /**
    * ImageCanvasEditorWidget constructor.
    */