fix for possible duplicated posts in one batch

app/post_downloader.rb

···
       response = @sky.get_request('app.bsky.feed.getPosts', { uris: items.map(&:post_uri).uniq })
 
       response['posts'].each do |data|
-        begin
-          item = items.detect { |x| x.post_uri == data['uri'] }
-          items.delete(item)
+        current_items = items.select { |x| x.post_uri == data['uri'] }
+        items -= current_items
 
+        begin
           post = save_post(data['uri'], data['record'])
 
           if post.valid?
-            update_item(item, post)
+            current_items.each { |i| update_item(i, post) }
           else
-            puts "Invalid post #{item.post_uri}: #{post.errors.full_messages.join("; ")}"
-            invalidate_item(item)
+            puts "Invalid post #{data['uri']}: #{post.errors.full_messages.join("; ")}"
+            current_items.each { |i| invalidate_item(i) }
           end
         rescue InvalidRecordError => e
-          puts "Error in PostDownloader: #{item.post_uri}: #{e.class}: #{e}"
-
-          item = items.detect { |x| x.post_uri == data['uri'] }
-          item.update!(queue: nil)
-          items.delete(item)
+          puts "Error in PostDownloader: #{data['uri']}: #{e.class}: #{e}"
+          current_items.each { |i| i.update!(queue: nil) }
         end
       end