History of rule 2 changes

In crates/hub/src/diffusion.rs, lines 1444–1456 on 559c392042340dc03180c163b407dd81c2f042df30441918b4254b482e7b3b64. 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 1444,1456:crates/hub/src/diffusion.rs.