Out of place split=false with static arrays regression on solve

[ChrisRackauckas]

using OrdinaryDiffEqTsit5, ModelingToolkit, StaticArrays
using ModelingToolkit: t_nounits as t, D_nounits as D

@parameters σ ρ β
@variables x(t) y(t) z(t)

eqs = [D(D(x)) ~ σ * (y - x),
    D(y) ~ x * (ρ - z) - y,
    D(z) ~ x * y - β * z]

@named sys = ODESystem(eqs, t)
sys = structural_simplify(sys; split=false)

u0 = SA[D(x) => 2f0,
    x => 1f0,
    y => 0f0,
    z => 0f0]

p = SA[σ => 28f0,
    ρ => 10f0,
    β => 8f0 / 3f0]

tspan = (0f0, 100f0)
prob = ODEProblem{false}(sys, u0, tspan, p)
sol = solve(prob, Tsit5())