History of deepen 3 changes

In src/cli/sync.rs, lines 1116–1138 on ef7d4ea6f33bb293f6624b63952d17400c9a42e9c4def93de17a676b7b65c45e. 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 1116,1138:src/cli/sync.rs.