Description of problem: 

When importing a VM with Thin Provisioned Disks from Export Domain to an FC Data Domain, the task is completed successfully but the disks are converted to Preallocated.

Version-Release number of selected component (if applicable): 3.4.2


How reproducible: 


Steps to Reproduce:

1. Import a VM (with thin provisioned disks) from export domain to an FC data domain on oVirt 3.4.2

Actual results:

Import is completed successfully but disks are converted to Preallocated


Expected results:

Import is completed successfully and disks remain Thin Provisioned

Additional info:

The issue occurred only after upgrading from oVirt 3.4.1 to oVirt 3.4.2 (and also after performing a yum upgrade on all ovirt nodes).

The problem never occurred with oVirt 3.4.1.