SP4: cross-site linked copies: link in a big text to a staging page which is validate afterwards: no rewriting of the url

Cf parent JIRA

I have a first site in two lang with a section where I tried to test all kind of possible links (on validated sub-pages, on staging sub-pages, on pages external to the section (in staging and live), etc...)

I did a cross-site linked copy of this section (cf attachment or screenshot). There was some sub-page in staging only which are referred in a big text from the source. On the first copy, these links redirect now to the source site (great!).

However if I finally, in a second step, validate my sub page in staging, the link is not rewritten in my big text and still point to the source site. Perhaps because the page is not correctly exported and reimported (cf parent JIRA).