samba - Feb 2017 - samba-tool dbcheck uncaught exception

Hello,
my domain is

Dns domain  = foo
Realm 	= FOO
Workgroup	= FOO


samba-tool dbcheck --cross-ncs --fix -v

....
Checking object DC=foo
ERROR(<type 'exceptions.ValueError'>): uncaught exception - unable
to
parse dn string
  File "/usr/lib/python2.7/dist-packages/samba/netcmd/__init__.py",
line
175, in _run
    return self.run(*args, **kwargs)
  File "/usr/lib/python2.7/dist-packages/samba/netcmd/dbcheck.py",
line
136, in run
    controls=controls, attrs=attrs)
  File "/usr/lib/python2.7/dist-packages/samba/dbchecker.py", line
141,
in check_database
    error_count += self.check_object(object.dn, attrs=attrs)
  File "/usr/lib/python2.7/dist-packages/samba/dbchecker.py", line
1509,
in check_object
    expected_dn = ldb.Dn(self.samdb, "RDN=RDN,%s" % (parent_dn))

On Wed, 2017-02-08 at 11:51 +0100, basti via samba
wrote:
> Hello,
> my domain is
> 
> Dns domain  = foo
> Realm 	= FOO
> Workgroup	= FOO
What version of Samba are you running?  Does this reproduce with the
current Samba 4.6 release candidates?

Thanks,

Andrew Bartlett