Quoteless unlabeled points (old-format briefs with no citation system) were
being auto-labeled via raw SQL after db.get() loaded them into the session
identity map. SQLAlchemy's commit-time flush could re-emit the ORM object's
cached state, silently overwriting the raw UPDATE.
Fix: run a single bulk SQL UPDATE for all matching rows before any ORM objects
are loaded into the session. The commit is then a clean single-statement
transaction with nothing to interfere. LLM classification of quoted points
continues in a separate pass with normal flag_modified + commit.
Authored by: Jack Levy