ir-anthology.bib keys are not unique or stable

[sebgntr]

In the current version, the bib creation process is stateless and does not resolve duplicate keys. It should resolve duplicates by adding a -b, -c, etc.
Relevant code: https://github.com/ir-anthology/ir-anthology-data/blob/master/scripts/util/rename.py

Keys are therefore also not stable across builds if sources change. Relying on the NTLK stopword list also means we have the risk of hidden changes that change key generation.

[akoehn]

I came across this ticket randomly -- just wanted to let you know that this is fixed in the upstream ACL anthology code, where we now have a bibtex key explicitly in the XML file, which is generated during ingestion and then never changes afterwards.