History of hub 3 changes

In crates/hub/tests/flow.rs, lines 40–55 on 0cd118748131b9e7e98a2c9b7b50df8ebcbda337097e6b2d61110408cc4d9b33. 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.