[Samba] Bind creates a situation where SSSD Crashes du to samba_dnsupdate

[Zombie Ryushu]

  We WERE able to get Kerberized Bind Zone Updates working for the very 
first time.

  (GSS-TSIG)

What this means is that samba_dnsupdate -actually works- just with 
straight Bind.

  That's had a bad secondary effect. Samba injects a record that looks like:

  pukey IN A 192.168.0.4 into Bind.

This crashes SSSD with an Assertion failure. How do I remove this a DNS 
entry from Samba?