Losing your position as a primary European power tends to be a fact that is resisted kicking and screaming (Spain sure took a long time and epic amounts of blood to accept it). France still had a shot after 1871, and will have it any way the war shakes out. It can lose that, and I think by 1914 they were getting close, but not close enough to forego giving it a final shot (by allying Russia to neutralize most of German power).
Or, in other words, I don't think taking anything somewhat peripheral to France (i.e. anything not part of the realm of France before the disassembly of Valois Burgundy) is going to matter. If you took Rheims or such you might be able to stoke the fire more, but I don't think you can get less. Germany might have outlasted the rage by ignoring it (and indeed, was doing so for the first few decades post-war by simply being hard enough to beat through clever diplomacy and innate strength), but avoiding the anger outright seems impossible.