[O] [bug] Assigning "0:00" to cell gives an error

[Sebastien Vauban]

Hello,

As shown by this example, we can't assign the value "0:00" to a cell:

| Task    |  HH:MM |
|---------+--------|
| This    |   1:23 |
| Nothing | #ERROR |
| That    |   1:23 |
#+TBLFM: @2$2=1:23::@3$2=0:00::@4$2=4:56

Best regards,
  Seb

-- 
Sebastien Vauban