markup=False no longer working (since 0.86.0)

[davep]

Given this code:

from rich.markup import escape
from textual.app import App, ComposeResult
from textual.widgets import Label

class MarkupApp(App[None]):

    def compose(self) -> ComposeResult:
        yield Label("Vanilla: [is this here?]")
        yield Label("markup=False: [is this here?]", markup=False)
        yield Label("Escaped: " + escape("[is this here?]"))
        yield Label("Escaped and markup=False: " + escape("[is this here?]"), markup=False)

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

at the moment the result looks like this:

Note that the Label with markup=False is still swallowing the markup.

If I go back to Textual 0.85 the result is as per the documentation:

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