History of Oxy::undo 1 change

In src/oxy.ts, lines 168–170 on 35d56b5803d995d9d1b08a5cdc832dd759c921a0bfc04fb2ba2bb60fefa33416. 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 168,170:src/oxy.ts.