History of Bus::subscribe 1 change

In crates/hub/src/bus.rs, lines 135–137 on f4e13830119830eb12f7474f7478128e782f16a65bc3a625495c9f5ef2eaac36. 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 135,137:crates/hub/src/bus.rs.