Every now and then an artist sparks controversy through no design of his own. It’s a scenario especially endemic to public art, and one with which Milwaukee is uncomfortably familiar. The city is rife with examples of public art that have provoked impassioned outcries from one party or another, whether they’re proposed projects that never got off the ground or ones single-mindedly propelled forward by a will unmatched by that of their most ardent foes. Each occasion yields the potential for an enriching discussion on the significance of public art. Whether or not it has been sufficiently taken up is another matter . . .