What is wrong with pf in 5.0?

[Nino Dehne <ndehne%gmail.com@localhost>]

Hi,

I upgraded my router to 5.0.0_PATCH and somehow pf is borked.

Rules such as

  pass  in quick on $ext6_if inet6 from any to { $ext6_if_local, $ext6_net }
  pass out quick on $ext6_if inet6 from { $ext6_if_local, $ext6_net } to any

get expanded to

pass in quick on gif0 inet6 from any to [...] flags S/SA keep state (if-bound)
                                              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
pass in quick on gif0 inet6 from any to [...] flags S/SA keep state (if-bound)
pass out quick on gif0 inet6 from [...] to any flags S/SA keep state (if-bound)
pass out quick on gif0 inet6 from [...] to any flags S/SA keep state (if-bound)

What the hell? Why does it apply TCP flags and state keeping when I didn't
request that anywhere?

Regards

-- 
Of course it runs NetBSD.