hey there 👋 I'm not able to make partial upserts work on 0.9.0 and the error messages are not helpful. the partial upserts did work previously, I have no idea what is happening. Can someone help me? This kinda blocks me to deliver my app to prod 😭 More info (such as config files and error messages) here.

@User just fixed an issue in master, so adding him to the thread