History of mib 2 changes

In crates/hub/src/flow.rs, lines 930–936 on 1e8a6e8bb91b2505c412628644d3f0ed64538798f61cc9852987c92c71c641bb. 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 930,936:crates/hub/src/flow.rs.