fix #98102

When VSCode selects preselected completion items, the index shouldn't start from 1. If there are multiple completion items with preselect=true, the first item will never be chosen.

src/vs/editor/contrib/suggest/suggestMemory.ts

@@ -26,7 +26,7 @@ export abstract class Memory {
 			return 0;
 		}
 		let topScore = items[0].score[0];
-		for (let i = 1; i < items.length; i++) {
+		for (let i = 0; i < items.length; i++) {
 			const { score, completion: suggestion } = items[i];
 			if (score[0] !== topScore) {
 				// stop when leaving the group of top matches