Save WebApp before fetching icons

app/services/app_catalog_manager/update_metadata.rb

@@ -18,6 +18,8 @@ module AppCatalogManager
         @app.metadata[prop] = metadata.send(prop) if prop
       end
 
+      @app.save!
+
       if icon = metadata.select_icon(sizes: "256x256") ||
          icon = metadata.select_icon(sizes: "192x192")
         attach_remote_image(:icon, icon)
@@ -27,8 +29,6 @@ module AppCatalogManager
       if apple_touch_icon = metadata.select_icon(purpose: "apple-touch-icon")
         attach_remote_image(:apple_touch_icon, apple_touch_icon)
       end
-
-      @app.save!
     rescue Manifique::Error => e
       msg = "Fetching web app manifest failed for #{e.url}: #{e.type}"
       Rails.logger.warn(msg)