Is there any way for a subflake to import the top-level flake?

"path:.." used to work but it was patched out (I think it might have been a bug that it ever worked in the first place). I have repositories that have subflakes that are use for testing or examples, and I want them to import the top-level flake. I know I can use an absolute path, but I’d rather not do that. Is there any way to do this anymore?