UK and French national libraries - sink money in a broken ISNI system
http://isni.org/000000012281955X
In section "Notes" around 700 broken links in the form
Wikipedia http://en.wikipedia.org/wiki/http://af.wikipedia.org/wiki/Albert_Einstein Wikipedia http://en.wikipedia.org/wiki/http://als.wikipedia.org/wiki/Albert_Einstein Wikipedia http://en.wikipedia.org/wiki/http://am.wikipedia.org/wiki/አልበርት_አይንስታይን Wikipedia http://en.wikipedia.org/wiki/http://an.wikipedia.org/wiki/Albert_Einstein Wikipedia http://en.wikipedia.org/wiki/http://ang.wikipedia.org/wiki/Albert_Einstein Wikipedia http://en.wikipedia.org/wiki/http://ar.wikipedia.org/wiki/ألبرت_أينشتاين Wikipedia http://en.wikipedia.org/wiki/http://arz.wikipedia.org/wiki/البرت_اينشتاين Wikipedia http://en.wikipedia.org/wiki/http://as.wikipedia.org/wiki/এলবাৰ্ট_আইনষ্টাইন Wikipedia http://en.wikipedia.org/wiki/http://ast.wikipedia.org/wiki/Albert_Einstein
Even if they would work - by removing "http://en.wikipedia.org/wiki/", what's the use of ~ 700 links to individual Wikipedias if they would work? They already exist at https://www.wikidata.org/wiki/Q937 .
The bug has been reported to them on 2015-11-02 and was confirmed shortly afterwards.
In section "Sources" - a link labeled "WKP" leads to http://en.wikipedia.org/wiki/Q937 - which as of today shows no Einstein content.
This was reported too and suggested to link to https://www.wikidata.org/wiki/Q937 instead.