Difference in behaviour of OptionList.add_options in Textual v2.0

[davep]

Previously this code:

from textual.app import App, ComposeResult
from textual.widgets import OptionList

class OptionListBugApp(App[None]):

    def compose(self) -> ComposeResult:
        yield OptionList()

    def on_mount(self) -> None:
        self.query_one(OptionList).add_options(f"Option {n}" for n in range(100))

if __name__ == "__main__":
    OptionListBugApp().run()

would result in a populated OptionList. As of v2.0.0 it now results in an unpopulated OptionList.

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