Decomposition of marginals does not decompose namedtuple when other marginals are present

[wouterwln]

if we have q(x,y)q(z) around a node, and we compute the marginal q(x,y) when one of the incoming messages is PointMass, we return the tuple (x = q_x, y = q_y). This is decomposed only when q(z) is not present.

Bug is here:

ReactiveMP.jl/src/score/score.jl

Line 16 in 1d28b19

function score(::AverageEnergy, fform, ::Val, marginals::Tuple{<:Marginal{<:NamedTuple{N}}}, meta) where {N}

The dispatch of the marginals argument should be wider.