History of tests::first 1 change

In crates/flow/src/cache.rs, lines 587–589 on v0.3.1. 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 587,589:crates/flow/src/cache.rs.