History of deepen 2 changes

In src/cli/sync.rs, lines 730–752 on 36e51aa806c69ece6701da9debb1bf95a6a7fa3ba93e5be3cb6f2992359bf6e7. 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.