History of deepen 2 changes

In src/cli/sync.rs, lines 599–621 on ea954efde27cfcc47ba27139a727ae5aea2bd0556eb7a5f566fce652594a745b. 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 599,621:src/cli/sync.rs.