Collections with self referencing relationships cannot be removed

Describe the Bug We have a basic use case that we're currently implementing with a workaround, but we couldn't find a clear reference whether this is currently supported in Directus or not. We have a pages collection that represents pages in a website. A page can either be a root page or have an optional parent. This allow us to model a hierarchical structure where we can display menus and submenus. Most of the model works as expected but the collection cannot be removed without removing the relation field first. Also we cannot configure the behavior "SET NULL" to the relationship. The model is as follows (simplified): • pages - id (pk) - title (required, string) - parent (optional, string, self-referencing) Some sample data: To Reproduce Create a collection as the one described in above. Try to delete the collection. Errors Shown The remove action fails with the following error in the Directus console. ![Screen Shot 2022-06…