History of checkpoint 4 changes

In src/cli/workspace.rs, lines 1732–1745 on b30a880fa40954c9943ef9c0813c16208a6dc557127248e6e566b55d8ca52b2d. 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 1732,1745:src/cli/workspace.rs.