History of MessageHistory::add 1 change

In src/commitbox.ts, lines 64–70 on 4be0e6185b6d6e7c7a568bd95c4cca5aa7874ebadba6e907d42cab052e8b893d. 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 64,70:src/commitbox.ts.