[BUG] threshold in stats.plot.effects is not working

[PStange]

What's broken?

Es werden auch nicht investierte Komponenten trotz threshold im plot angezeigt, siehe Beispiel. In diesem sollte S2 nicht dargestellt werden.

Code to reproduce

import pandas as pd
import flixopt as fx


timesteps = pd.date_range('2024-01-15 08:00', periods=2, freq='h')

flow_system = fx.FlowSystem(timesteps)

flow_system.add_elements(
    fx.Bus('Heat', carrier='heat'),
    fx.Effect('costs', '€', 'Total Costs', is_standard=True, is_objective=True),
    fx.Source(
        'S1',
        outputs=[fx.Flow('S1', bus='Heat',
                         size=fx.InvestParameters(minimum_size=10,
                                                  maximum_size=500,
                                                  effects_of_investment_per_size=10,
                                                  mandatory=False),
                         effects_per_flow_hour=10)],
    ),
    fx.Source(
        'S2',
        outputs=[fx.Flow('S2', bus='Heat',
                         size=fx.InvestParameters(minimum_size=10,
                                                  maximum_size=500,
                                                  effects_of_investment_per_size=100,
                                                  mandatory=False),
                         effects_per_flow_hour=100)],
    ),
    fx.Sink(
        'ABC',
        inputs=[fx.Flow('abc', bus='Heat', size=1, fixed_relative_profile=222)],
    )
)

flow_system.optimize(fx.solvers.HighsSolver())

flow_system.stats.plot.effects('periodic', effect="costs", by="component", threshold=1.0, show=True)

Error message

Additional context

No response