When referencing an attachment in a comment, wiki renderer can incorrectly superscript text in bullet or numbered lists

Summary

Within a Comment or Description type field, adding an attachment link in the comment, and creating a bullet list or numbered list will sometimes incorrectly superscript the text that follows

Environment

• Replicated in Jira 8.4.1 with Chrome 77.0.3865.90

Steps to Reproduce

1. Attach a file to a Jira issue
2. Create a new comment on that issue, be sure to use the visual text editor in the comment
3. Using the paperclip icon in the text editor, add a link to that uploaded attachment
4. Then click either the bullet list OR numbered list
5. Move the cursor to the end of the line (either via mouse click or keyboard arrow keys)
6. Press Enter/Return to get a new line in the list
7. Enter some additional text

Expected Results

The entered text should appear normally.

Actual Results

The entered text instead is superscripted

Notes

Switching over to Text editor mode we can see that the caret symbol appears ot be getting added to the text on that line, and subsequent lines.

Workaround

Using the Text editor mode instead of Visual editor mode is one way to work past this bug.