History of ReferenceIndex::clear 1 change

In src/references.ts, lines 40–42 on 95f69b4a3ac20947ad0f0231a2729238a2fca4ff908685f44ef20b03b6b35b33. 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 40,42:src/references.ts.