appDisplay: Ensure we don't recreate existing AppIcons for folders

This was missed in 910037f014355ee9680c45f82a4aac2891c4074f, make sure
we do the same thing for AppIcons that are created when reloading
folders.

https://gitlab.gnome.org/GNOME/gnome-shell/merge_requests/851

diff --git a/js/ui/appDisplay.js b/js/ui/appDisplay.js
index f78a2c03d1c8961389d98aeb98ef00f64c7cbab3..6221eb2b413ddabe5f0bb5fa4ec305da5171c0dd 100644 (file)
--- a/js/ui/appDisplay.js
+++ b/js/ui/appDisplay.js
@@ -1417,7 +1417,10 @@ class FolderView extends BaseAppView {
             if (apps.some(appIcon => appIcon.id == appId))
                 return;
 
-            let icon = new AppIcon(app);
+            let icon = this._items[appId];
+            if (!icon)
+                icon = new AppIcon(app);
+
             apps.push(icon);
         };