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-rw-r--r--app/lib/activitypub/activity/create.rb2
1 files changed, 1 insertions, 1 deletions
diff --git a/app/lib/activitypub/activity/create.rb b/app/lib/activitypub/activity/create.rb
index ab1d63cd4..010ed1bb5 100644
--- a/app/lib/activitypub/activity/create.rb
+++ b/app/lib/activitypub/activity/create.rb
@@ -80,7 +80,7 @@ class ActivityPub::Activity::Create < ActivityPub::Activity
     hashtag = tag['name'].gsub(/\A#/, '').mb_chars.downcase
     hashtag = Tag.where(name: hashtag).first_or_initialize(name: hashtag)
 
-    status.tags << hashtag
+    status.tags << hashtag unless status.tags.include?(hashtag)
   rescue ActiveRecord::RecordInvalid
     nil
   end