Allow to overwrite prototype trigger that is set to "None"

Sometimes when trying to add a trigger to an object, I cannot choose a trigger (e.g. “on click” or “after delay”) because it’s already taken, even though no prototyping noodle is showing up. In the prototyping panel I then notice that the action is set to “none”.

I wish that I could just overwrite a prototyping trigger from the interaction panel if the action is set to “none”.