Shield Bash Second Charge does not recieve the recovery bonus from stuns

Fairly easy to reproduce

When taking the node that Shield bash gets a second charge, The first charge works as expected and clearly gets the recovery bonus from stuns

The second charge does not. It appears once the first charge is full the second charge does not cool down any faster on stunning enemies. This is very blatant as regardless of what the Cooldown is always the same

It appears to be using the remaining cooldown of the first charge, but given it is full, it does not charge any faster