minor changes

lib/model/source/album.dart

@@ -140,6 +140,8 @@ mixin AlbumMixin on SourceBase {
   final Map<String, AvesEntry?> _filterRecentEntryMap = {};
 
   void invalidateAlbumFilterSummary({Set<AvesEntry>? entries, Set<String?>? directories}) {
+    if (_filterEntryCountMap.isEmpty && _filterRecentEntryMap.isEmpty) return;
+
     if (entries == null && directories == null) {
       _filterEntryCountMap.clear();
       _filterRecentEntryMap.clear();

lib/model/source/location.dart

@@ -159,6 +159,8 @@ mixin LocationMixin on SourceBase {
   final Map<String, AvesEntry?> _filterRecentEntryMap = {};
 
   void invalidateCountryFilterSummary([Set<AvesEntry>? entries]) {
+    if (_filterEntryCountMap.isEmpty && _filterRecentEntryMap.isEmpty) return;
+
     Set<String>? countryCodes;
     if (entries == null) {
       _filterEntryCountMap.clear();

lib/model/source/tag.dart

@@ -70,6 +70,8 @@ mixin TagMixin on SourceBase {
   final Map<String, AvesEntry?> _filterRecentEntryMap = {};
 
   void invalidateTagFilterSummary([Set<AvesEntry>? entries]) {
+    if (_filterEntryCountMap.isEmpty && _filterRecentEntryMap.isEmpty) return;
+
     Set<String>? tags;
     if (entries == null) {
       _filterEntryCountMap.clear();

lib/widgets/viewer/debug/debug_page.dart

@@ -64,6 +64,7 @@ class ViewerDebugPage extends StatelessWidget {
             'path': entry.path ?? '',
             'directory': entry.directory ?? '',
             'filenameWithoutExtension': entry.filenameWithoutExtension ?? '',
+            'extension': entry.extension ?? '',
             'sourceTitle': entry.sourceTitle ?? '',
             'sourceMimeType': entry.sourceMimeType,
             'mimeType': entry.mimeType,

test/widget_test.dart

@@ -1,8 +0,0 @@
-import 'package:aves/widgets/aves_app.dart';
-import 'package:flutter_test/flutter_test.dart';
-
-void main() {
-  testWidgets('widget test', (tester) async {
-    await tester.pumpWidget(const AvesApp());
-  });
-}