Steps to replicate the issue (include links if applicable):

There is no way to reproduce random behaviour (Curious Facts’ behaviour is random) but this was what happened.

• Went to Curious Facts
• Pressed Give me some new weird stuff

What happens?:

It gave “Song dynasty has a statement "country of citizenship: Nie Pingzhong" but Nie Pingzhong is not found in the class "state". This fact was established on: 2022-12-10 04:42:28, and is based on the 2022-11-28 snapshot in hdfs of the Wikidata JSON dump. Edits made after that date are not taken into account.”

I went to Wikidata to check this claim. Nie Pingzhong (last modified 2022-08-18) has claim “country of citizenship: Song dynasty” while Song dynasty (last modified 2022-11-22) does not have a country of citizenship claim. The anonaly was a false positive.

What should have happened instead?:

It should have found nothing curious because as of 2022-11-28 Song dynasty should not have had a statement “country of citizenship: Nie Pingzhong”.

Without knowing how the tool works, it *looks* like something has caused the tool to make its inference backwards, causing the false positive.

Software version (skip for WMF-hosted wikis like Wikipedia):

Other information (browser name/version, screenshots, etc.):

Screenshot showing Curious Facts claimed that Song dynasty claims country of citizenshipL: Nie Pingzhong

Screenshot showing Song dynasty has not been edited since 2022-11-22

Screenshot showing Song dynasty does not have a country of citizenship claim

Screenshot showing Nie Pingzhong has not been edited since 2022-08-18

Screenshot showing Nie Pingzhong does have a country of citizenship claim and it’s Song dynasty