fix the issue Not compatible with config_split module

src/ConditionalFieldsElementAlterHelper.php

@@ -61,7 +61,10 @@ class ConditionalFieldsElementAlterHelper {
          */
         if (is_object($bundle) && method_exists($bundle, 'getPluginId')) {
           $bundle = $bundle->getPluginId();
+        } elseif (is_object($bundle) && method_exists($bundle, 'bundle')) {
+          $bundle = $bundle->bundle();
         }
+      
 
         $dependencies = $this->loadDependencies($entity_type, $bundle);