Static IPv6 fe80 route gets dormant

[Kenth Eriksson]

Why is the route fe80::7270:8bff:fee8:8081 considered dormant? OSPF and
static routes have different administrative distance and the static
route has lower AD (higher bird preference).

# birdc
BIRD v2.0.7-11-g4f6e7456 ready.
bird> show route
Table master4:
0.0.0.0/0            unicast [ospfv2_1 13:28:22.244] * E1 (145/21) [1] [10.210.138.65]
	via 10.210.138.65 on eth0
10.210.138.64/30     unicast [direct1 13:27:55.058] * (255)
	dev eth0
                     unicast [ospfv2_1 13:28:17.245] I (145/10) [10.210.138.65]
	dev eth0
10.210.138.66/32     unicast [direct1 13:27:53.325] * (255)
	dev lo
10.210.138.69/32     unicast [direct1 13:28:17.451] * (255)
	dev p1-2-3-4g0
                     unicast [ospfv2_1 13:28:29.244] E1 (145/10) [10.210.138.69]
	via 10.210.138.69 on p1-2-3-4g0
10.210.128.0/24      unicast [ospfv2_1 13:28:22.244] * I (145/11) [10.210.138.65]
	via 10.210.138.65 on eth0

Table master6:
::/0                 unicast [ospfv3_2 13:28:23.245] * E1 (145/20) [1] [10.210.138.65]
	via fe80::7270:8bff:fee8:8081 on eth0
2a02:1420:1:138b::64/126 unicast [direct1 13:27:55.058] * (255)
	dev eth0
                     unicast [ospfv3_2 13:28:18.244] I (145/10) [10.210.138.65]
	dev eth0
2a02:1420:1:138b::66/128 unicast [direct1 13:27:53.332] * (255)
	dev lo
2a02:1420:1:138b::69/128 unicast [ospfv3_2 13:28:29.244] * E1 (145/10) [10.210.138.69]
	via fe80::206:9cff:fe05:b9f1 on p1-2-3-4g0
bird> show static
::/0
	via fe80::7270:8bff:fee8:8081 (dormant)
bird>