Possible Bug or human error - different domain name for LAN interface with DHCP

[fatiher]

Hi there. I'm a pfSense newbie. I was using Untangle for years but decided to migrate to pfSense for its elasticity. First i want to describe my lab system.

using pfSense 2.1RC with 5 interfaces.

1 WAN 2 LAN 3 ACCESSPOINT 4 INTRANET 5 DMZ
my router system has a gateway.aaaa.com domain name on General Settings. on LAN i've setup DHCP Server with Static mappings but this interface has a different domain name like bbbb.com. Also all mappings has bbbb.com as domain name to be sure.

Then i've setup DNS Forwarder and checked "Register DHCP static mappings in DNS forwarder" box. Everything blurred after this point.

if I ping terminal.bbbb.com it can't get resolved, but terminal.aaaa.com is wrongly resolved. As I understand DNS Forwarder gets domain name not from "DHCP static mapping" but from "General Settings".

And now i need help! is it a bug? or my own setup error? Did I miss something out? Should I setup all DNS Forwards manually?

Thanks in advance.
Fatih ER