fix aa shapehint bug when shapeHint doesn't update when rrect -> non-rrect changed 2

Runtime/ui/renderer/common/geometry/path/path.cs

             this.needCache = false;
             this.pathKey = 0;
             this._isNaiveRRect = false;
+            this._shapeHint = uiPathShapeHint.Other;
+            this._rRectCorner = 0;
         }
 
         void _reset() {