## What problem does this address? Since merging https://github.com/WordPress/gutenberg/pull/46541, when you try to add a submenu item using the List View, it throws an error on the second attempt: https://user-images.githubusercontent.com/275961/207663712-a256b547-b7e1-4b23-bdac-4afafe88b1c2.mov We should make it possible to add as many submenu items as you like.