Unexpected additional behavior when using zip to construct NamedTuple

General Usage
2

The issue is coming from fill which doesn’t instantiate copies, but fills the container with references to the same input object.

julia> x = fill(zeros(3),2)
2-element Vector{Vector{Float64}}:
 [0.0, 0.0, 0.0]
 [0.0, 0.0, 0.0]

julia> x[1] === x[2]
true

julia> x[1][1] = 1.0
1.0

julia> x
2-element Vector{Vector{Float64}}:
 [1.0, 0.0, 0.0]
 [1.0, 0.0, 0.0]

You can get the expected behavior with map

julia> test = (; zip((:a, :b), map(_ -> zeros(3), 1:2))...)
(a = [0.0, 0.0, 0.0], b = [0.0, 0.0, 0.0])

julia> test.a[1] = 1.0
1.0

julia> test
(a = [1.0, 0.0, 0.0], b = [0.0, 0.0, 0.0])
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