Session records now store how a session ended and where its working copy came from.
What's wrong with this entry?
A git-backed session record can carry an ended block with a reason, a line of up to 2000 characters, a timestamp and whether it was published; a missing reason falls back to ended_earlier. Session starts also record where the working copy came from (remote, bundle or overlay) and whether it was seeded.
- Non-git session records gained fields for tracked dependency directories, whether state is lost with the disk, and tombstones.
- No gate; these fields are written whenever a session record is.
ended_earlier
Strings lifted out of the shipped bundle, so the claim above can be checked against them.