To correct this, I identified the observation as a plant, thereby pushing the ID to “State of matter Life”. Then I edited and deleted the plant ID, so the ID was lizard again.
The wrong Life Stage information was lost in this process and the right Life Stage could be subsequently chosen.
Now after correction: https://www.inaturalist.org/observations/3684332
Interesting workaround. The one time I encountered that before, I just left a comment, and the user corrected it themselves.
If the person who left the annotation had no longer been active or didn’t want to change it, however, I don’t know if multiple “thumbs down” by other identifiers would ever be enough to override the annotation and allow another one to be selected.