add logging

lib/util/deterministicGrouping.js

@@ -294,6 +294,11 @@ module.exports = ({ maxSize, minSize, items, getSize, getKey }) => {
 		}
 	}
 
+	console.log(
+		initialNodes.map(n => `${n.key} ${JSON.stringify(n.size)}`),
+		maxSize
+	);
+
 	if (initialNodes.length > 0) {
 		const initialGroup = new Group(initialNodes, getSimilarities(initialNodes));