[ovirt-devel] Question regarding support of incremental backups in 4.3.?

Hi everyone, I'm quite confusing regarding Incremental backups support in 4.3. Could you please clarify it for me. The REST API contains a /backups link in links section of a VM, also the UI allows to enable incremental backup for a disk. However, the /backups returns empty result for any VM. It looks like it is a stump for future development, is that correct? Thanks in advance. Regards, Anton.