History of issue 2 changes

In crates/oh/src/main.rs, lines 505–575 on 6a17805583532833680cc1bf30cc7c63cd4c6778aa3532b30dd8528f54b481fa. 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 505,575:crates/oh/src/main.rs.