As joshtriplett said in the issues, this depends on the already-unsafe ability of Rc to leak when a cycle is formed. It's just turning one form of unsafeness in

As joshtriplett said in the issues, this depends on the already-unsafe ability of Rc to leak when a cycle is formed. It's just turning one form of unsafeness into a wide form. Nice to see that the team are doing what they can to about the issue though.