No scoping due to missing project ID

[jjbayer]

See

POP-RELAY-31Z

This is related to #3553, but not the same, because the failure happens before aggregation.

Started happening around May 15th.

[jjbayer]

There's a bad assumption in here somewhere:

see the error
  => state_value() missing
    => contradiction! `merge_buckets_into_aggregator` would not even be called
  OR
  => project_id is none
    => project is invalid or disabled
      => contradiction! we call check_disabled in both code paths leading to the error
    OR
    => project is expired
      => contradiction! project_id wouldn't be none

[Dav1dde]

I am making a few changes to how metrics work this should fix this issue as well.

[Dav1dde]

There are project cache changes coming from @jjbayer which should address this issue. My changes did not touch this part of the code, only surrounding parts.