GRUB is broken after 11479
The size of objset_phys_t increased and GRUB was not updated to account for it. This causes two different failures:
- If a dataset created before 11479 is activated and a dataset with 11479 is selected at boot, GRUB fails to load it with "Selected item cannot fit into memory".
- If a dataset created with 11479 is activated, GRUB fails with "not enough memory to fit 4096 bytes on stack" and the system is rendered completely unbootable.