On the next round, it's likely to correctly determine lemonade.

Hallucinations are usually outliers. So 1 in 10 times it gets confused and picks tea. Those 1 in 10 times end up with poisoned context.

The models are not deterministic by design. Identical inputs produce different outputs. So if you roll a bad output, it can poison your context. Flushing the context can easily fix the problem (unless like the in the pokemon harness, you roll over a brief of the previous context)