fsck_apfs check error

Just after upgrading to High Sierra for few days and running with APFS auto-conversion

I had 2 kernel-panics (almost forgotten that those exists...) and now I got this:

-bash-3.2# fsck_apfs /dev/rdisk2s2

** Checking volume.
** Checking the container superblock.

** Checking the EFI jumpstart record.

** Checking the space manager.

** Checking the object map.

** Checking the APFS volume superblock.

** Checking the object map.

** Checking the fsroot tree.

error: drec_val object (oid 0x76ed006): invalid type (0)

fsroot tree is invalid.

** The volume /dev/rdisk2s2 could not be verified completely.

I don't have a clue what "error: drec_val object XXX invalid type (0)" means.

So what Do I do now? Pray to the gods of internet since APFS sources aren't released,

there is no documentation and now what? I can go and reformat my drive because

that the base fs can't be repaired? Really?

I'm seriously amazed at the quality and implementation of such major change as APFS.