2.7.0DEV during install cannot manually create GPT and zfs partitioning.

[N8LBV]

If using auto-partion entire disk it works..
When you look at what it's about to do it shows the ZFS partiton as no mountpoint (blank).

If I try to manually create a partition layout (expert mode).
Partition Schem is: GPT
p1 = efi
p2 = freebsd-swap
p3 = freebsd-zfs

If I leave the mountpoint for zfs blan (as seen in auto zfs install mode) when you click commit
It errors with: "No root partition was found. The root FreeBSD partition must have a mountpoint of '/'.
(sure- agreed).

If I do the same but specify / as mountpoint for zfs partition it it gives warning:
"This filesystem (freebsd-zfs) is not bootable on this system. Are you sure you want to proceed?"

After Click YES-

"Partitioning error
An installation step has been aborted. Would you like to restart the installation or exit the installer?"

If I do same steps as above but use freebsd-ufs instead of zfs, it works and lets me do it.