x/net/ipv4: multicast listener tests fail on bridge-like stacked interface

[mikioh]

go test
--- FAIL: TestUDPSingleConnWithMultipleGroupListeners-2 (0.01 seconds)
    multicastlistener_test.go:49: ipv4.PacketConn.JoinGroup 224.0.0.249:0 on {8 1500 bridge0 02:42:e8:30:66:00 up|broadcast|multicast} failed: setsockopt: address already in use
--- FAIL: TestUDPMultipleConnWithMultipleGroupListeners-2 (0.01 seconds)
    multicastlistener_test.go:96: ipv4.PacketConn.JoinGroup 224.0.0.249:0 on {8 1500 bridge0 02:42:e8:30:66:00 up|broadcast|multicast} failed: setsockopt: address already in use
--- FAIL: TestUDPPerInterfaceSingleConnWithSingleGroupListener-2 (1.36 seconds)
    multicastlistener_test.go:177: net.ListenPacket with <nil> failed: listen udp4: lookup <nil>: no such host
FAIL

E.g.,
em0: flags=28943<UP,BROADCAST,RUNNING,PROMISC,SIMPLEX,MULTICAST,PPROMISC>
        no ipv4 address assigned
bridge0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST>
        member: em0 flags=143<LEARNING,DISCOVER,AUTOEDGE,AUTOPTP>
        ipv4 address assigned

[mikioh]

Comment 1:

This issue was closed by revision golang/net@dcb9639.

Status changed to Fixed.