`dual_names` option not ensuring named dual constraint

[andrewrosemberg]

Primal bounded variable with name not getting named dual constraint.

In the below example, the variable named "0_pg[1]" (that has both an upper and lower bound) gets a dual constraint created but with no name.

MWE:

using JuMP
using Dualization
using GLPK
using Downloads
using PowerModels

case_name = "pglib_opf_case5_pjm.m"
DATA_DIR = mktempdir()
case_file_path = joinpath(DATA_DIR, case_name)
Downloads.download("https://raw.githubusercontent.com/power-grid-lib/pglib-opf/01681386d084d8bd03b429abcd1ee6966f68b9a3/" * case_name, case_file_path)
network_data = PowerModels.parse_file(case_file_path)

pm = PowerModels.instantiate_model(
    network_data,
    DCPPowerModel,
    PowerModels.build_opf;
    setting=Dict("output" => Dict("duals" => true)),
)

jump_primal_model = pm.model

##### Ensuring our primal Variable has a name
@assert name(var(pm, 0, :pg, 1)) == "0_pg[1]"
@assert !isnothing(variable_by_name(jump_primal_model, "0_pg[1]"))

dual_jump__model = dualize(jump_primal_model, with_optimizer(GLPK.Optimizer); dual_names = DualNames("dual_v_", "dual_c_"))

####### ERROR #######
@assert !isnothing(constraint_by_name(dual_jump__model, "dual_c_$(var(pm, 0, :pg, 1))"))