Sub agent cost confusing / shows up as main agent in the branch/project/session cost

[amenk]

I used fable 5 for a review and asked it to use subagents (which were shown as general-purpose, so sonnet I think). So the total cost seems right, but the session cost seems to assume only fable was used?

I had only that session today.

1,2,3 seems incorrect, 4 is correct?