History of deepen 3 changes

In src/cli/sync.rs, lines 1147–1169 on 642da2636de23fd2aee00ace74e1ec4abace8241fb73d3f30519be0fdc1d4c8c. 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 1147,1169:src/cli/sync.rs.