Fix single Redis connection being used across all threads (#18135)

* Fix single Redis connection being used across all Sidekiq threads

* Fix tests

1 files changed, 3 insertions, 1 deletions

diff --git a/app/services/fetch_link_card_service.rb b/app/services/fetch_link_card_service.rb
index 9c8b5ea20..868796a6b 100644
--- a/app/services/fetch_link_card_service.rb
+++ b/app/services/fetch_link_card_service.rb
@@ -1,6 +1,8 @@
 # frozen_string_literal: true
 
 class FetchLinkCardService < BaseService
+  include Redisable
+
   URL_PATTERN = %r{
     (#{Twitter::TwitterText::Regex[:valid_url_preceding_chars]})                                                                #   $1 preceding chars
     (                                                                                                                           #   $2 URL
@@ -155,6 +157,6 @@ class FetchLinkCardService < BaseService
   end
 
   def lock_options
-    { redis: Redis.current, key: "fetch:#{@original_url}", autorelease: 15.minutes.seconds }
+    { redis: redis, key: "fetch:#{@original_url}", autorelease: 15.minutes.seconds }
   end
 end