fix Jammed Spell crash when caster is invalid handle (e.g. prebuff spell cast by NPC)
fix Jammed Spell crash when caster is invalid handle (e.g. prebuff spell cast by NPC)

GrognardsFromHell/TemplePlus,GrognardsFromHell/TemplePlus,GrognardsFromHell/TemplePlus,GrognardsFromHell/TemplePlus,GrognardsFromHell/TemplePlus