Nested follow up questions cause broken unfocusable inputs

[powersurge360]

If you nest two follow up question boxes the inner one will have a click event that will fire a handler to recheck all inputs to see if they should be visible and enabled. This has the knock on effect of 'blinking' it disabled which causes it to lose focus. Refocusing retriggers effectively making it unfocusable by clicking. Tabbing still works because it is untouched by the click handler.

See https://github.com/codeforamerica/vita-min/pull/4988/files for a possible fix.