fixed collection refresh

lib/widgets/collection/collection_grid.dart

@@ -327,7 +327,7 @@ class _CollectionScrollViewState extends State<_CollectionScrollView> {
                 hasScrollBody: false,
                 child: _buildEmptyCollectionPlaceholder(collection),
               )
-            : const SectionedListSliver<AvesEntry>(),
+            : SectionedListSliver<AvesEntry>(),
         BottomPaddingSliver(),
       ],
     );

lib/widgets/collection/grid/thumbnail.dart

@@ -76,7 +76,7 @@ class InteractiveThumbnail extends StatelessWidget {
             id: collection.id,
             listenToSource: false,
           );
-          assert(viewerCollection.entryCount == collection.entryCount);
+          assert(viewerCollection.sortedEntries.contains(entry));
           return EntryViewerPage(
             collection: viewerCollection,
             initialEntry: entry,

lib/widgets/common/grid/sliver.dart

@@ -14,8 +14,6 @@ import 'package:provider/provider.dart';
 // cf https://github.com/flutter/flutter/issues/49027
 // adapted from `RenderSliverFixedExtentBoxAdaptor`
 class SectionedListSliver<T> extends StatelessWidget {
-  const SectionedListSliver();
-
   @override
   Widget build(BuildContext context) {
     final sectionLayouts = context.watch<SectionedListLayout<T>>().sectionLayouts;