Multicheckbox field returns array, but string if only the last one is checked

If I have a multicheckbox (more checkboxes with same name, different values), and I getValues on it, I ususally get array of selected values (and nulls for not checked fields). But if I check only the last checkbox, I'll get a string insted. It should always return an array.



Here is the fiddle http://ift.tt/1mHNQWA



See also the console output:







Both checked:

• ingredients: Array[2]
  
  
  
  • 0: "tomato"
  
  
  • 1: "salami"
  
  
  • length: 2
  
  
  
  

First one checked:

• ingredients: Array[2]
  
  
  
  • 0: "tomato"
  
  
  • 1: null
  
  
  • length: 2
  
  
  
  

Second one checked:

• ingredients: "salami"