History of schemas 7 changes

In crates/hub-api/src/lib.rs, lines 834–897 on cc19697f8871064ada7194955455ed9ecd2a053bcc4410f657c9bcecc900e774. Every change that wrote or deleted one of these lines, or deleted a line from between them. Exact, because each line keeps its identity across edits; edits elsewhere in the file are not here. Also: oxy log -L 834,897:crates/hub-api/src/lib.rs.