History of tests::row 2 changes

In crates/hub/src/diffusion.rs, lines 1257–1275 on c0095389312bf1b2c80f27971c055382946928e880bba8c1da8329e3d38239d6. 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 1257,1275:crates/hub/src/diffusion.rs.