修复:镜像后封边对应错误

src/GraphicsSystem/CalcEdgeSealing.ts

@@ -227,21 +227,17 @@ export function GetBoardSealingCurves(br: Board, offsetInside = false): Curve[]
     if (brContour instanceof Circle)
         return [brContour.Clone()];
 
-    if (br.IsRect)
-        brContour = new Polyline().Rectangle(br.Width, br.Height);
-
     if (offsetInside)
     {
         let dir = Math.sign(brContour.Area2);
         let offsetedCurve = brContour.GetOffsetCurves(-1 * dir)[0] as Polyline;
-        if (br.IsSpecialShape && OffsetOutlineSpNotChange(brContour, offsetedCurve))
+        if (OffsetOutlineSpNotChange(brContour, offsetedCurve))
             brContour = offsetedCurve;
     }
 
     //避免共线导致的侧面数据对应错误
     let curves = brContour.Explode();
-    if (br.IsSpecialShape)
-        MergeCurvelist(curves);
+    MergeCurvelist(curves);
 
     if (curves.length === 1 && curves[0] instanceof Circle)//变成一个圆
         return curves;