[CentOS] CentOS7+kickstart+thinpool = error/exception

Hi,
I'm trying to create a kickstart file that uses a thinly provisioned lvm
volume as root but I've run into trouble. I installed a System manually
using this option and this is the anaconda file produced:

part /boot --fstype="xfs" --ondisk=vda --size=500
part pv.10 --fstype="lvmpv" --ondisk=vda --size=7691
volgroup centos_centos7 --pesize=4096 pv.10

logvol   --fstype="None" --grow --size=1232 --thinpool --name=pool00
--vgname=centos_centos7
logvol swap  --fstype="swap" --size=819 --name=swap --vgname=centos_centos7
logvol /  --fstype="xfs" --grow --maxsize=51200 --size=1024 --thin
--poolname=pool00 --name=root --vgname=centos_centos7

The Problem is that when I use this as the basis for a kickstart
Anaconda complains that I need to specify a mount-point for the logvol
line defining the thinpool. So I looked at the kickstart documentation
here: http://fedoraproject.org/wiki/Anaconda/Kickstart#logvol
There is says "--thinpool Create a thin pool logical volume. (Use a
mountpoint of "none")" so I went ahead and specified a mountpoint
"none". The result is that Anaconda now crashes with an exception.

Does sombody know how I can install CentOS 7 using a thinpool? The
features of thinly provisioned lvm volumes make them highly desirable
for database backups for example.

Regards,
  Dennis