IIIFServer: How to change the links in manfest, not to the default site

[dan]

I have a question about the Module IIIF server that generates the IIIF manifest.

The following scenario is the case: I have an Omeka S installation with different sites (A / B / C). The items are linked to each other, as an Omeka resource. When I open an item on site B or C with an IIIF viewer (e.g. universalviewer), the generated link inside the manifest is always to the item under site A (the default site)
I looked in the code, by defaultf it always assumes the default site when creating the links, but never the actual site. Is it somehow possible to change this behavior, e.g. via a setting on the site itself?

Thanks for help

[dan]

I just found this topic that describes exactly my problem as well.:

Issue with UniversalViewer/IIF server and linked Omeka S objects

[significantly redacted question, after some additional checks] I’ve recently introduced UniversalViewer to show media in an Omeka S installation. Many of the items include links to other Omeka S items, either added directly or through the relevant feature of the 'custom-vocab` module. In UniversalViewer, in the media information panel, these elements are shown as clickable, but the links are actually to the item being currently displayed (so clicking just reloads the current page). In some ca…

But the fix is not generic.