import_export: links to MR are not proper links (and incompletely imported)
This is similar on some point to #26380 (closed) but other things are missing too!
I imported the project https://gitlab.com/victornoel/petals-cockpit (8.15.2-ee) into a docker instance of gitlab 8.15.2-ce. I did it as an admin.
First, as in #26380 (closed), the MR references are not converted to links in the imported project:
Second, contrary as with issues, it seems that the activity is not properly imported in the referenced MR.
The mention is simply missing!