title: How to get rid of leading zero in QSpinBox
body: <p>I am using a QSpinBox that can be used to input values from 0 to 33. The default value is zero. If I use the keyboard to enter numbers it keeps the leading zero, which is annoying.</p>
  
  <p>Example: I want to enter 23 via the keyboard</p>
  
  <p>I type "2" - the value of the spinbox changes to "02"</p>
  
  <p>I type "3" - nothing happens - the spinbox is full</p>
  
  <p>How do I prevent this behavior?</p>
  
  <p>thanks,
  A</p>