History of consumers 4 changes

In crates/hub/src/diffusion.rs, lines 473–563 on 76f93eaefe451cb3fe2daefccf8fd5b8c3bbb071a030a6876459bcde7ac54664. 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 473,563:crates/hub/src/diffusion.rs.