History of m 1 change

In crates/hub/src/diffusion.rs, lines 568–577 on 73ef9f7671328214d75c86253d0e1094580d7cace048c6d44716d68728d58fde. 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 568,577:crates/hub/src/diffusion.rs.