local cursor = uci.cursor()
local zone = firewall_find_zone(name)
local net = cursor:get("firewall", zone, "network")
- cursor:set("firewall", zone, "network", (net or name .. " ") .. interface)
+ local old = net or (cursor:get("network", name) and name)
+ cursor:set("firewall", zone, "network", (old and old .. " " or "") .. interface)
cursor:save("firewall")
end