History of ago 3 changes

In crates/hub/src/flow.rs, lines 1870–1878 on v0.9.11. 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 1870,1878:crates/hub/src/flow.rs.