History of hub 1 change

In crates/hub/tests/flow.rs, lines 40–54 on bf3d07541368f292b04d0d7532dfd263174396eaad73bb62cd9c76252c558e1e. 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 40,54:crates/hub/tests/flow.rs.