Sometimes there's no recommendation for a building in a city, because it essentially has everything. So, I choose wealth, research or culture. Later, when I get a new tech, I want to cancel the wealth/research/culture build (easy enough to do - I just clear it in the queue). When I do this, the city effectively builds nothing, without going back to suggesting (recommending) a build. I'm obliged to pick something and wait for it to complete before I get a "recommendation" for the best build.
How can I get back to the recommended builds after wealth/research/culture, without having to build something arbitrarily?