History of deepen 2 changes

In src/cli/sync.rs, lines 680–702 on c2d790f9fa9545028cb6ea29223212bdf4fab3e4719e6f942f60c21896917ac3. 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 680,702:src/cli/sync.rs.