selected_row_ids property of DataTable is None in callback after refreshing a persisted table

Describe your context

I'm running Dash app from a python program.

• replace the result of pip list | grep dash below

dash                              2.0.0
dash-bootstrap-components         1.0.0
dash-core-components              2.0.0
dash-html-components              2.0.0
dash-renderer                     1.9.1
dash-table                        5.0.0
dash-ui                           0.4.0

• if frontend related, tell us your Browser, Version and OS

  • OS: Windows 10
  • Browser Firefox, Chrome
  • Version 94, 96 (respectively)

Describe the bug

My app has a DataTable and a callback that renders Tabs based on rows selected in the table. I've enabled persistence recently and I find that after a page refresh in the browser, the row selection is persisted in the table but the selected_row_ids are empty when passed to my callback.

Steps to reproduce:

1. Store the program below in a python file.
2. Run the file with dependencies as show above.
3. In the browser a table will be shown. Choose a few rows using their checkboxes.
4. Notice that the id's of the selected rows are now listed below the table.
5. Refresh the page.

Code:

import dash
import dash_table
import pandas as pd
from dash import Input, Output
from dash import html

df = pd.read_csv("https://raw.githubusercontent.com/plotly/datasets/master/solar.csv")
df.insert(loc=0, column="id", value=range(0, 8))
app = dash.Dash(__name__)

app.layout = html.Div(
    [
        dash_table.DataTable(
            id="table",
            columns=[{"name": i, "id": i} for i in df.columns],
            data=df.to_dict("records"),
            persistence=True,
            row_selectable="multi",
            cell_selectable=False,
        ),
        html.Div(id="output"),
    ]
)

@app.callback(
    Output("output", "children"),
    Input("table", "selected_row_ids"),
)
def render_plot_tabs_from_selected_experiments_table_rows(
    selected_row_ids,
):
    return f"Output: {selected_row_ids}"

if __name__ == "__main__":
    app.run_server(debug=True)

Expected behavior

After the page is refreshed, when the callback function is invoked, the argument selected_row_ids should contain the ids of rows that are selected. These values should appear in the output div on screen.

Actual behavior

While selected rows still show as selected in the table, the value of selected_row_ids is None in the callback. The list of values appears empty below the table.

Screenshots

Expected:

Actual:

Inizia con la riproduzione Python fornita, concentrandoti sul comportamento di persistenza di DataTable e sull’input del callback selected_row_ids. Il payload non nomina file o test del repository. Il lavoro è completato quando il ricaricamento della pagina mantiene gli ID delle righe selezionate nel callback e li visualizza nel div di output.