This seems a bug to me but maybe it is not.
If I search for the place I created (Picasso Food Forest) on the “Identify” page it gets picked up by the filter and the result is shown for the specific polygon I draw and the search URL contains the place_id:
If I search for my place on the “Explore” observations page it doesn’t get picked up by the filter and the result is shown for the bounding box around the Google Maps feature.
If I want the same result as for the identify search I have to write the URL manually like this: https://www.inaturalist.org/observations?place_id=140997
Any idea why the new place is not getting picked up by the observation search filter?