A lone Static results in a TooManyMatches error when using query_one

[davep]

I've not dived into this beyond knocking up this example to isolate what I saw (about to head out of the door but wanted to record this as a reminder). With 0.27.0 (perhaps before too, just noting the version here for the record), this code:

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

class OneStatic( App[ None ] ):

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

    def on_mount( self ) -> None:
        self.query_one( Static ).update( "Hello, World!" )

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

results in a TooManyMatches error being raised from the query_one. With very early testing this only seems to be the case with Static (at least, I tested with Label and Button and they're fine).

I think most people would rightly find this surprising.

[TomJGooding]

Looks like the problem is that the new Tooltip is mounted which inherits from Static?

[willmcgugan]

Ahh. Good call. Might have to think about how to do things like tooltips without being visible in the DOM.

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