zpool labelclear destroys GPT data

[Johan Hendriks]

When i use zpool labelclear, it wipes the whole disk including gpt data.
So the whole disk is empty and i need to create the gpt partitions again.

Is this supposed to work like this?
The man page suggests that it only wipes the ZFS metadata.

zpool labelclear [-f] device

          Removes ZFS label information from the specified device. The 
device
          must not be part of an active pool configuration.

          -v      Treat exported or foreign devices as inactive.

This is on FreeBSD 9.1 stable r251213 memstick install.

regards

Johan Hendriks
Neuteboom Automatisering