Pyrotechnics - Error still yields cooldown

[Hagbard]

Hi!

I tried to use a pyrotechnics ordinance when wielding a twohanded weapon, and it told me I needed to have a hand free to use it ( makes sense).

However, this put me in a cooldown of 45 seconds before I could try again.
I don't believe a failure to use it should put me in the cooldown.