In your sentence, which happens to be the topic, so no inversion will take spot. Furthermore, the ultimate clause is a statement, not a question: that's functioning to be a relative pronoun, not as an issue term. The same would apply if it ended up an adverbial. Compare these two https://makechristmascards29517.bcbloggers.com/35690205/the-2-minute-rule-for-banking-and-finance-lawyer