Do NZers think sovereignty was ceded in 1840?

Christopher Luxon and Chris Hipkins recently disagreed on whether they think Māori ceded sovereignty when they signed the Treaty of Waitangi in 1840. So I thought it would be interesting to see what NZers thought, so we asked 1,000 NZers in our October monthly poll (3 to 7 Oct). The results are at my Patreon (paywalled).

Note that the question was over whether sovereignty was ceded, not over whether the Government today has sovereignty.