merge

xcd

2020-07-06 0f71990dc60af6e96c9f4c2f2095ca6711e2c870

 src/Bro.UI.Model.Winform/Element/ROI_Circle.cs

@@ -28,10 +28,6 @@
        {
        }

        public override void CalculateBaseRectangle()
        {
        }

        public override object Clone()
        {
            ROI_Circle circle = new ROI_Circle();