Down bit in Type-5 LSAs?

R7#show ver | i IOS

Cisco IOS XE Software, Version 03.11.01.S - Standard Support Release

Cisco IOS Software, CSR1000V Software (X86_64_LINUX_IOSD-UNIVERSALK9-M), Version 15.4(1)S1, RELEASE SOFTWARE (fc2)

R7#show ip ospf database external 150.1.8.8

            OSPF Router with ID (172.16.7.7) (Process ID 1)

               Type-5 AS External Link States

  Routing Bit Set on this LSA in topology Base with MTID 0

  LS age: 1343

  Options: (No TOS-capability, DC, Downward)

  LS Type: AS External Link

  Link State ID: 150.1.8.8 (External Network Number )

  Advertising Router: 155.1.67.6

  LS Seq Number: 80000002

  Checksum: 0x1F4F

  Length: 36

  Network Mask: /32

        Metric Type: 2 (Larger than any link state path)

        MTID: 0 

        Metric: 2 

        Forward Address: 0.0.0.0

        External Route Tag: 3489661028

Looks like Cisco is now doing what the RFC says =) 

I wonder how much stuff this will break when people deploy new code and don't know about this new surprise.