[ovirt-users] Bug or feature? Thin provision RAW disk images take all space in advance

Hi, Run into strange problem with newly installed latest 4.1. Defined local storage domain. Create virtual disk - thin provisioning (in web interface) makes RAW images, and PREALLOCATES to full size instead of min size 1GB. Preallocation occurs even before formatting to ext4. Tried several times, same result. How to fix this behavior? Thanks in advance. Andrei