Unexpected download starts along with file preview when clicked a link of attachment

Bug Fix Policy

At the moment, we can't set an ETA for the fix to be released, since there's a number of factors that determine how our product team prioritizes bugfixes.
You can learn more by reading Atlassian Cloud Bug Fixing Policy.

Issue Summary

When you clicked an attachment, the download starts along with file preview.

Environment

• Chrome Version 76.0.3809.100 (Official Build) (64-bit)
• Firefox 68.0.1 (64-bit)

Steps to Reproduce

1. Create a page with an old editor and add an attachment as link
2. Click the link and verify the download starts

Video
https://www.youtube.com/watch?v=lXsrsrOFxRk&feature=youtu.be

Expected Results

Only file preview starts when clicked the link.

Actual Results

The download starts along with file preview.

Workaround

None. Consider adding yourself as a watcher to be kept informed as to the state of the bug moving forward. With that way, if our development team updates the ticket, you'll be notified via email.