Save web app metadata explicitly

app/models/app_catalog/web_app.rb

@@ -12,8 +12,6 @@ class AppCatalog::WebApp < ApplicationRecord
   validates :url, format: { with: URI.regexp },
                   if: Proc.new { |a| a.url.present? }
 
-  before_create :update_metadata
-
   def update_metadata
     AppCatalogManager::UpdateMetadata.call(self)
   end

app/services/app_catalog_manager/update_metadata.rb

@@ -24,6 +24,8 @@ 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)