In combination with StaticArrays 1.4.2 I get the error `combine_sizes not defined` when comparing two matrices. MWE: ``` A = HybridArray{Tuple{2,2,StaticArrays.Dynamic()}}(randn(2,2,4)); B = rand(2,2,4); A .== B ``` Likely related: https://github.com/JuliaArrays/StaticArrays.jl/pull/1008