Test_vdi_cbt: test that data_destroy does not change VDI type if it fails
Test_vdi_cbt: test that data_destroy does not change VDI type if it fails

Signed-off-by: Iglói Gábor <7535f5501fd71876c93d896691e178fd3a11cfbb@citrix.com>

srowe/xen-api,srowe/xen-api,srowe/xen-api,srowe/xen-api,srowe/xen-api