Bitbucket Server/Data Center migration of images from PRs

I tried out the BB Server integration and seems to work well on a simple repo, but I note that (as the documentation hinted at), it won’t bring across any attachments to comments on PRs/Merge Requests. This surprised me somewhat as the documentation implied that attachments “in markdown” weren’t supported but it seems like perhaps they aren’t supported at all. Is there anything on the roadmap to support this in the future?