* [bug#54768] The execution of the IPD project also has parent stage.

module/execution/ui/create.field.php

@@ -20,7 +20,7 @@ $fields->field('project')
     ->items(data('allProjects'))
     ->value(data('projectID'));
 
-if(!empty($project) && ($project->model == 'waterfall' || $project->model == 'waterfallplus'))
+if(!empty($project) && in_array($project->model, $config->project->waterfallList))
 {
     $fields->field('parent')
         ->wrapBefore(true)