Browser autofill will not fill more than one input

The browser will autofill a set of native inputs (say for an address) but if custom elements are used, only the focused input will autofill. This is a limitation of the browser and not BUI

See: https://bugs.chromium.org/p/chromium/issues/detail?id=649162
and: https://github.com/w3c/webcomponents/issues/572