When using array's, deleting any entry using the 'x item' button and then trying to add a new entry with '+ item'  button fails.

Error:

jsoneditor.min.js:3 Uncaught TypeError: Cannot read property 'style' of null
at HTMLButtonElement.<anonymous> (jsoneditor.min.js:3)

However, the code runs as expected on the JSON Editor Example page (http://jeremydorn.com/)

Sample Schema:

{
   title":"Test array",
   "type":"object",
   "properties":{
   "Tester": { "type":"array",
   "items": { "type":"object",
   "properties":

{     "myitem":\{"type":"string"}

}
}

}
}
}