Word+Zotero CSL style to Pandoc to Latex question

[ioanmuntean]

I am using the Better Bibtex when I import files from Word+Zotero to Latex through Pandoc. This worked like a charm for about 3 years and my citations in Word had this format: [@battermanAutonomyTheoriesExplanatory2017]. I wrote a number of LUA filters and Pandoc was converting these to entries like \cite[battermanAutonomyTheoriesExplanatory2017]. I also managed to do some work for prefixed and suffixed citations in Zotero.
Here is what happens now. When I inspect the CSL style called Beete Bibtex Citekeys I get this: [@citation Key: primieroInformationPhilosophyComputer2016c]
There is an extra "Citation Key" text before the @ sign. Let me know if this is an expected behavior.
I can modify my LUA filter in Pandoc to ignore the "citation key" text but is there a rationale for this change? Thanks in advance!