Wrong title when changing facet_col_wrap value

📊 Plotly Python
2

I checked the fig.layout.annotations list and found it is sorted by the order of y value.

Is this correct? I feel the order should be ascending for x and decending for y.

(layout.Annotation({
    'font': {},
    'showarrow': False,
    'text': 'variable=2',
    'x': 0.5,
    'xanchor': 'center',
    'xref': 'paper',
    'y': 0.2866666666666666,
    'yanchor': 'bottom',
    'yref': 'paper'
}), layout.Annotation({
    'font': {},
    'showarrow': False,
    'text': 'variable=1',
    'x': 0.5,
    'xanchor': 'center',
    'xref': 'paper',
    'y': 0.6433333333333333,
    'yanchor': 'bottom',
    'yref': 'paper'
}), layout.Annotation({
    'font': {},
    'showarrow': False,
    'text': 'variable=0',
    'x': 0.5,
    'xanchor': 'center',
    'xref': 'paper',
    'y': 0.9999999999999999,
    'yanchor': 'bottom',
    'yref': 'paper'
}))