[🐛 BUG] Slider with tuple lov forced into multi-selection

[arcanaxion]

What went wrong? 🤔

Previous demonstrated this in #2290.

Code example:

from taipy.gui import Gui, Icon
import taipy.gui.builder as tgb

aggregation_list = [("minute", "Minute"), ("hour", "Hour"), ("day", "Day"), ("week", "Week")]
selected_aggregation = aggregation_list[0]

with tgb.Page() as page:
    tgb.text("# Single selection for list[tuple[str, str | Icon]] lov", mode="md")
    tgb.slider("{selected_aggregation}", lov="{aggregation_list}", value_by_id=False)
    tgb.text("{selected_aggregation}")

def on_change(state, var_name, var_value):
    print(var_name, type(var_value), var_value)

if __name__ == "__main__":
    gui = Gui(page=page)
    gui.run(run_browser=False, use_reloader=True)

Video:

slider.tuple.lov.multi.selection.mp4

Expected Behavior

Slider should be single-select.

For multi-selection, selected_aggregation should have been initialized to a list (e.g. [] or aggregation_list[:2]).

Browsers

Chrome

OS

Windows, Linux

Version of Taipy

develop

Acceptance Criteria

• A unit test reproducing the bug is added.
• Any new code is covered by a unit tested.
• Check code coverage is at least 90%.
• The bug reporter validated the fix.
• Related issue(s) in taipy-doc are created for documentation and Release Notes are updated.

Code of Conduct

• I have checked the existing issues.
• I am willing to work on this issue (optional)