Bug - Cannot edit NAT linked rules to bind then with traffic shapper queues

[casinmirad]

Hello,

When you try to modify a linked firewall rule, the following error appears:

The field 'Source' is required.
The field 'Source bit count' is required.

But in fact, as this is a linked rule, you cannot modify the Source and Destination address and ports.

How to reproduce:

1. Create a NAT Portforwarding rule, with the option to create a linked rule
2. Try to modify the linked rule, to bind it with a traffic shapper queue in "Advanced features"

Also clicking in "View NAT rule" in a linked rule, goes to NAT edit page, but nothing is show.

[cmb]

http://redmine.pfsense.org/issues/586