Bug fix: supplying startval with a value of false
          #762
        
          
      
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This fixes an issue I saw, when I set
startvaltofalse(with no schema) the form does not render a boolean, instead it rendersnull.The bug is demonstrated in this jsfiddle: https://jsfiddle.net/joelnordell/rx60sy2L/
The fix is demonstrated in this jsfiddle: https://jsfiddle.net/joelnordell/z8pjLsju/