I don't know if this is the correct place to post this but there's a bug with jam submissions that may lead to double-posting comments.
Steps to reproduce:
- Change ratings on a jam submission, don't save ratings.
- Write a comment for the jam submission, try to submit it.
- The browser displays the "leave page / stay on page" dialogue. Choose to stay on page.
At this point, your written comment is still in the text edit box and it's not displayed on the submission page. Your ratings are not saved.
Expected behavior: The comment is not submitted.
Actual behavior: The comment is submitted, but it's not visible and it's still in the text edit box.
At this point, if you save your rating and try to submit the comment again, no dialogue will pop up and your comment will be submitted again. Leading to a double post.