History of OperationItem::constructor 2 changes

In src/operations.ts, lines 10–25 on b55e0d00545e2c2dbe36765341deb92f6e2ee5aa7d3e30ae1936302c243c681a. 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 10,25:src/operations.ts.