Backport pull request #6041 from jellyfin-web/release-10.9.z

Fix list view item undefined

Original-merge: 6cae5c2646f39f0f63afb204fd12cedf398b80ad

Merged-by: thornbill <thornbill@users.noreply.github.com>

Backported-by: thornbill <thornbill@users.noreply.github.com>

src/controllers/list.js

@@ -856,7 +856,7 @@ class ItemsView {
             setTitle(null);
             getItem(params).then(function (item) {
                 setTitle(item);
-                if (item.Type == 'Genre') {
+                if (item && item.Type == 'Genre') {
                     item.ParentId = params.parentId;
                 }