[#SomeChanges Suggestion] Make Deflect not be affected by casting

[JamminL]

Description

Deflection from hunter's deterrence will not work if the hunter is casting a spell.

While this follows the same rule as parry/block/dodge, it seems like this is unintentional behavior and there is no player expectation that deterrence should stop working just because you cast during it. So much so that this was just recently discovered.

As far as I know, deflection isn't used for other things in WoW so this would be a quick change with minimal impact.

[SimonBpvp]

To be honest I would much rather you kept all the spells blizzlike instead of changing them based on player expectations.