[acdha]

That was my thought, as well - it’s easy to imagine this calling some internal APIs which aren’t great, leading someone to toss a cache in front of a few calls but botching the logic so the cache is always populated even on errors. I’ve seen a few cases where people tried to bolt something like that onto Java/Python APIs designed to raise exceptions when validation failed so it was especially easy to overlook the error path because the code was written to focus on the successful flow.