I'm not sure if this is the correct place to sent this bug/issue (as i have a issue with the bugtracker). Please address me if i'm wrong (i will learn something every day). For console bugs/issues (xbox 360 ps3 ps4 xbox one etc) there is no way to send a private issue. Glitches duplicating items seem to be all over the place for console. There are the 5 golden rules on bug reporting on your site. Only the fifth rule doesn't apply to console on this bug tracker. (i numbered the rules). I suggest or adding the function for console or edit the text: this does not apply to console editions (in this case 4J).
Tips For Making Awesome Reports

1.Submit ONE issue per report please, it's easier for us to follow and manage!
2.Please provide a (to the point) summary of your problem. Avoid one worded summaries and things like "help!!!".
3.The description should contain details of the problem and how to reproduce it, so that we can more easily track down the problem and try to fix it.
4.Please search before creating a report to make sure your issue hasn't already been reported. If it has, please join the discussion there!
5, If you've discovered an exploit or a security issue, please create a Private report that only yourself and Mojang will be able to see.