Merge pull request #2131 from github/koesie10/fix-delete-local-query

Fix error while deleting query history item

extensions/ql-vscode/src/interface.ts

@@ -399,7 +399,7 @@ export class ResultsView extends AbstractWebview<
     forceReveal: WebviewReveal,
     shouldKeepOldResultsWhileRendering = false,
   ): Promise<void> {
-    if (!fullQuery.completedQuery.successful) {
+    if (!fullQuery.completedQuery?.successful) {
       return;
     }