Question

Editing an interface causes it to be removed from custom firewall zones.

Model: RUT240
Firmware: 07.04.03

Steps to reproduce:

1. Navigate to Network->Firewall->General
2. Create a new Zone called mywan
   1. Add the wan interface as a covered network
   2. Other settings do not matter
   3. Click Save & Apply
3. Navigate to Network->Interfaces->General
4. Click the pencil to edit the wan interface
5. Click Save & Apply
   1. No settings actually need to be changed
6. Navigate to Network->Firewall->General
7. Click the pencil to edit the mywan zone
8. The wan interface has been removed from Covered networks