History of deepen 2 changes

In src/cli/sync.rs, lines 730–752 on f9466021286acf2f71279531153458910c82632bd1b8749c3788693a52fc89e2. 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 730,752:src/cli/sync.rs.