Some Macros related to attachments in HTML Export are broken

When exporting a page or space in HTML, with Attachments/Multimedia Macro. The links to the attachments are not set properly.

Steps to Reproduce

1. Create a new space
2. On the main page, or any other pages within the space, add the View File, Attachments or Multimedia Macro
3. Go to Space tools > Content Tools > Export*
4. Select HTML, then click Next
5. Perform either Normal Export or Custom Export (both are affected)
6. Click Download here.
7. Unzip the file.
8. Open index.html.
9. Open a page that has attachments
10. Try opening an attachment from the "Macro"

Expected Results

View File and Attachment Macro

The attachment would open.

Multimedia Macro

Multimedia embedded in the page would be shown correctly.

Actual Results

The link to the attachment still points to the Confluence instance, and thus the page is not able to find it.

Below I've appended both links, the first one is the link inside the Macros, the second one is the link to the attachment at the bottom of the page:

file:///conf611/download/attachments/1671170/ES-100717-1029-2.pdf?api=v2

file:///Users/admin/Downloads/HE/attachments/1671170/1671175.pdf

Additional issue with the bug

Alongside as the issue desribed above, there is an issue where the "Attachments" list (below where the macro is rendered) shows an extra attachments that have either been renamed or deleted and are no longer available. They all have dead links.