Page links are not treated as internal page links where appropriate

I'm migrating pages from another Wiki server to Confluence and as part of this I'm maintaining page links.

I'm currently using the webui link of each page in anchor tags eg.

"webui": "/display/~andrew.clark/Sprint+7",

However, if you at some point in the future rename the target page these links are not updated accordingly. This seems to be because the REST api is always treating URLs as external URLs instead of internal links.

Does the REST api support internal links at the moment? If so, what is the URL format required? Otherwise, URLs that match a certain format as provided by the webui field of the content should be treated as internal links and act accordingly.