Issue Summary

When calling Jira REST API with expand=renderedFields or expand=renderedBody for comments API the returned HTML doesn't contain full links for any attachments in the content ( like description and comment ). 

Whereas "@" mentions contain the full URL of the user in the HTML content.

Steps to Reproduce

1. Create a Jira issue with an Attachment (i.e. image) and a "@" mention of a user
2. call Jira Get issue rest api with expand=renderedFields 

   curl --location 'https://sitename.atlassian.net/rest/api/3/issue/ABCD-1?expand=renderedFields' \
   --header 'Authorization: Basic ..' 

1. inspect the description HTML content

Expected Result

Both attachment and user link should be full link

Actual Result

User link is like this - containing full site url

<a href=\"https://sitename.atlassian.net/secure/ViewProfile.jspa?accountId=<<AAID>>\" 

But, attachment link is like this - only the rest endpoint is present

<img src=\"/rest/api/3/attachment/content/10112\"