i'm trying to build the errors of my form (using zod) in the field metadata. i have nested objects, so i want to build sub levels too (hence the "joined", screenshot 1).
in screenshot 2, i have a qualified hook to subscribe to the form's store, and use fieldMeta with keys. one prop is normal, one is nested.
in screenshot 3, the result. errors are showing as error[] in the non nested field, but error[][] (double array) in the nested one.
i don't think i do any treatment to promote this behavior, so it's a bug?