Apple has a lot of other bugs in their code, too. Did you ever try to delete a Bootcamp partition and merge it to you main disk when using their new filesystem?

Apple has a lot of other bugs in their code, too. Did you ever try to delete a Bootcamp partition and merge it to you main disk when using their new filesystem? It corrupts the disk and in order to be able to reallocate the disk space you need to completely wipe the Mac and start fresh.