Coefficients matrix does not return constraint when lhs empty

[guimarqu]

No description provided.

[guimarqu]

using Coluna
variables = Dict{Int, String}(1 => "x_1", 2 => "x_2", 3 => "x_3", 10 => "y_1", 11 => "y_2")
constraints = Dict{Char, String}('a' => "constr_1", 'b' => "constr_2", 'c' => "constr_3" , 'e' => "bounds_1")
matrix['a', 1] = 2

Contraint a contains 1 coefficient

julia> matrix['a', :] 
Coluna.MembersVector{Int64,String,Float64}(Dict(10 => "y_1",2 => "x_2",3 => "x_3",11 => "y_2",1 => "x_1"), Dict(1 => 2.0))

Constraint b is empty.

julia> matrix['b', :]
Coluna.MembersVector{Int64,String,Float64}(Dict(10 => "y_1",2 => "x_2",3 => "x_3",11 => "y_2",1 => "x_1"), Dict{Int64,Float64}())

If you iterate over getrows(matrix), it only shows constraint a because MembersVector iterates over non-zero records.