I went clicking through to see if I could find the prompt they fed the AI to locate the issue / write the test suite.

I couldn't find it, so its unclear if the prompt was completely "make a test suite" or was lead towards finding it in the first place, which wouldn't be a fair test.

The closest I mention of the prompt I could find was:

> Then I asked it to write a simple workload which exercised the WAL insert and checkpoint code. Notably, this is a completely generic workload.

With a skeptical lens, unclear.