message: Tweak a comment for accuracy and formatting
diff: @@ -205,11 +205,10 @@ export class QueryEditor extends React.Component {
  }
  _onBeforeChange(instance, change) {
  - // the update function is only present on the paste event
  + // The update function is only present on non-redo, non-undo events.
  if (change.origin === 'paste') {
  const text = change.text.map(normalizeWhitespace);
  change.update(change.from, change.to, text);
  }
  }
  -
  }
  