Steps to Reproduce:

• Have admin rights at Wikidata
• Open a revision of a deleted item in the Web UI (e.g. via a link like https://www.wikidata.org/w/index.php?title=Special:Undelete&target=Qxxx&timestamp=YYYYMMDDHHMMSS )

Example:

• https://www.wikidata.org/w/index.php?title=Special:Undelete&target=Q97146929&timestamp=20200823011433

Actual Results:

• Interface says e.g. "1 reference" for a given claim, but the reference is not shown and there is no link to open it (unlike for regular items); I thus cannot review the content of references of a deleted item—I can only see that there are references.

Expected Results:

• Same as for regular items: there should be a clickable link to open the reference

The issue had existed in the past per T196423; no idea since when it is broken again.