Resolve the effect-key namespace an active effect's key dropdown should draw from, based on its system.scope:
key
system.scope
"this"
"actor"
The effect's system.scope, or undefined.
undefined
The effect document's own type.
The parent document's type, or undefined.
The owning actor's type, or undefined.
The resolved metadata type (item kind / actor type).
Resolve the effect-key namespace an active effect's
keydropdown should draw from, based on itssystem.scope:"this"→ the parent document's own type (falling back to the effect's type),"actor"→ the owning actor's type,