Expand query details by default if 'use excludes' button is in the _non-default_ state

src/vs/workbench/parts/search/browser/searchViewlet.ts

@@ -253,7 +253,7 @@ export class SearchViewlet extends Viewlet {
 			this.actionRegistry[action.id] = action;
 		});
 
-		if (filePatterns !== '' || patternExclusions !== '' || patternIncludes !== '' || queryDetailsExpanded !== '' || useExcludesAndIgnoreFiles) {
+		if (filePatterns !== '' || patternExclusions !== '' || patternIncludes !== '' || queryDetailsExpanded !== '' || !useExcludesAndIgnoreFiles) {
 			this.toggleQueryDetails(true, true, true);
 		}