Handy Spells (hotbar manipulation) causing odd behaviors and not working correctly

[Shibva]

There are a few things I noticed with it when developing a spell to contracts quarks feature of swapping out items from the item you use when in your inventory (a bug when using place block I and II)

after probing the issue I have come to the following conclusions;

• using any handy spell action (including swap hands) while freecasting causes the user to be ejected from the grid (a base hex reaction)
• if a spell is using any of these whether freecasting or using a trinket, it will interrupt the cast and not run to completion if more is present after that section of the spell; acting like a Charon's Gambit oddly.
  • This only occurs if the CAD or staff is adjusted at any point, including swapping hands.
  • This issue is not present if you are wearing a caster ring (it's why I have reason to believe the base hex grid check is causing this to occur as the ring in the slot is telling it that it's still holding a staff, even during the hand swap)
    • this in turn proposes a proper solution to have the spell when executed "trick" the detection into the caster still holding a staff or some method to suppress the check for at least a tick or two

[Shibva]

for best results; test in SURVIVAL

[SamsTheNerd]

Possible duplicate of #74