TypeError in getproperty on container types

[akirakyle]

I think I may have stumbled upon a bug with getproperty on accessing container types, although I suspect it's actually a missing convert in the constructor's definition. For example

using Moshi.Data: @data

@data OptionVec{T} begin
    None
    struct Some
        n::T
        xs::Vector{Any}
    end
end

A = OptionVec.Some{String}("hi", [1, 2])
A.xs

gives the error

ERROR: TypeError: in typeassert, expected Vector{Any}, got a value of type Vector{Int64}
Stacktrace:
 [1] getproperty(value::Main.OptionVec.var"typeof(OptionVec)"{String}, name::Symbol)
   @ Main.OptionVec ~/.julia/packages/Moshi/SEGHC/src/data/emit/getproperty.jl:21
 [2] top-level scope
   @ REPL[5]:1

This can obviously be fixed by just converting before the constructor OptionVec.Some{String}("hi", Any[1, 2]) but I would expect the constructor to automatically handle the conversion to the specified variant's type?