LoginDisplay.razor Logout link doesn't work

[df171422]

This issue is probably more suited to an AspNet Blazor Identity scaffolding forum, but I thought I'd try posting it here first. The logout link in /Pages/Shared/_LoginPartial.cshtml link works - clicking on it calls and hits breakpoints in the /Areas/Identity/Pages/Account/Logout.cshtml.cs class and successfully logs out the user, but the same link in the /Shared/LoginDisplay.razor component doesn't work, doesn't hit any breakpoints in the /Areas/Identity/Pages/Account/Logout.cshtml.cs class, and goes immediately to a 400 error page:

After further research, I found a hidden input at runtime in _LoginPartial.cshtml:

<form id="logoutForm" class="form-inline" action="/Identity/Account/Logout" method="post">
            <button id="logout" type="submit" class="nav-link btn btn-link text-dark">Logout</button>
        <input name="__RequestVerificationToken" type="hidden" value="CfDJ8MYF7EMsIsdIhI2h4kArxNzE7Ta6m4X1NxL8hNYiv1BQJQMSC1QbpbpHljdLPeJ6IBNQ4w0_hGAnaBwD9LXLA6GLAhHCqwjtWQPfdfpuxS0vCzzMRCGLRgcVRxAD2k6XroRpkc9SpMiQVZ-xoDiq3YgxO11CotKIWLFjtPfusnIDSiBM6d2vqtLRHA5amzWdDQ"></form>

that isn't in LoginDisplay.razor at runtime:

<form action="/Identity/Account/Logout?returnUrl=%2F" method="post"><button class="nav-link btn btn-link" type="submit">Logout</button></form>

When I copy the hidden input and paste it into the form in LoginDisplay.razor, it works. I don't see the hidden input anywhere in the form in _LoginPartial.cshtml...how is it getting there / what is putting it there? Any idea what's going on here?

Thanks-
Brad