Convalescence skill set bug

Convalescence can be used without swapping weapons, even if it's assigned to only one skill set.
This effectively allows you to reserve it on Skill Set 2 while still casting it from Skill Set 1, bypassing the weapon swap animation.

Demonstration video:
https://streamable.com/q4wrir

Can confirm this bug still exists... running convalescence on weapon swap only, doesn't consume spirit on weapon set 1, but doesn't swap to weapon set 2 to use it.