
We still ensure the old and new ones start, respectfully, with `a/` and `b/`. Use with `stripLen` to ensure tha the old `a/` and `/b` are gone if a new prefix is added.
We still ensure the old and new ones start, respectfully, with `a/` and `b/`. Use with `stripLen` to ensure tha the old `a/` and `/b` are gone if a new prefix is added.