History of Scene::arrive 1 change

In crates/backdrop/src/scene.rs, lines 21–21 on 3eb491e9489b1e0c652afca88a01ac6c9c959e478d663a28c69c447d8cacd1f7. 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 21,21:crates/backdrop/src/scene.rs.