Error when Deleting an Account

Thanks for reporting! I get an error when I'm admin, and delete another user: (the stack trace below is from a dev build, looks a bit different)

Error
TypeError: Cannot read property 'assign' of undefined
    at Object.success (http://localhost/-/assets/267/more-bundle.js:31419:37)
    at http://localhost/-/assets/267/slim-bundle.js:41226:33

See Dev Tools for details: usually Ctrl + Shift + C, here in the browser, then click Console.

in dev tools:

slim-bundle.js:41242 Error calling /-/delete-user: {}, details: TypeError: Cannot read property 'assign' of undefined
    at Object.success (VM85 more-bundle.js:31419)
    at slim-bundle.js:41226

and when I, as a test user, delete my own account, that works fine. So I think people are able to delete their own accounts, and the bug happens when an admin delete someone's account. Ok, so, I need to make this work for admins too, and add end-to-end tests for both deleting one's own account, and delete-others account.