History of deepen 2 changes

In src/cli/sync.rs, lines 730–752 on 23ff1288a5ddb61e548fbf34e65a6f0ea7bacce8a1ded054ec4ac58991c9076c. 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.