Arrays of ForwardDiff Duals incorrectly marked as not mutable?

[ChrisRackauckas]

using ForwardDiff, Enzyme
using ForwardDiff: Dual
tmp1 = ForwardDiff.Dual{ForwardDiff.Tag{Nothing, Float64}, Float64, 3}[Dual{ForwardDiff.Tag{Nothing, Float64}}(0.0,0.0,0.0,0.0), Dual{ForwardDiff.Tag{Nothing, Float64}}(0.0,0.0,0.0,0.0), Dual{ForwardDiff.Tag{Nothing, Float64}}(0.0,0.0,0.0,0.0)]
Enzyme.make_zero!(tmp1)

julia> Enzyme.make_zero!(tmp1)
ERROR: AssertionError: !(ismutable(T))
Stacktrace:
 [1] make_zero_immutable!
   @ C:\Users\accou\.julia\packages\Enzyme\baiSZ\src\compiler.jl:1440 [inlined]
 [2] make_zero!
   @ C:\Users\accou\.julia\packages\Enzyme\baiSZ\src\compiler.jl:1519 [inlined]
 [3] make_zero!(prev::Vector{Dual{ForwardDiff.Tag{Nothing, Float64}, Float64, 3}})
   @ Enzyme.Compiler C:\Users\accou\.julia\packages\Enzyme\baiSZ\src\compiler.jl:1573
 [4] top-level scope
   @ REPL[9]:1

[wsmoses]

Something is very strange here with ForwardDiff.Dual.

julia> T = ForwardDiff.Dual{ForwardDiff.Tag{Nothing, Float64}, Float64, 3}
Dual{ForwardDiff.Tag{Nothing, Float64}, Float64, 3}

julia> ismutable(T)
true

julia> v = T(0)
Dual{ForwardDiff.Tag{Nothing, Float64}}(0.0,0.0,0.0,0.0)

julia> v.
partials
value
julia> v.value = 3
ERROR: setfield!: immutable struct of type Dual cannot be changed
Stacktrace:
 [1] setproperty!(x::Dual{ForwardDiff.Tag{Nothing, Float64}, Float64, 3}, f::Symbol, v::Int64)
   @ Base ./Base.jl:41
 [2] top-level scope
   @ REPL[10]:1

@vchuravy any ideas?

[wsmoses]

oh never mind, this is an accidental use of ismutable instead of ismutabletype

[wsmoses]

Fixed by #1612

[ChrisRackauckas]

Can this get a tag?