History of hub 3 changes

In crates/hub/tests/flow.rs, lines 40–55 on 36e5a9c15a841b3c83b70fa1077f2cc00a562d01776f24d6c824a2da019de3ff. 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 40,55:crates/hub/tests/flow.rs.