修复bug

src/graphic/Controls/MovePoint.js

@@ -202,7 +202,6 @@ export default class MovePoint {
         line = mathUtil.createLine3(lineGeometry, position);
         let join = mathUtil.getIntersectionPoint(line, otherLine);
         mathUtil.clonePoint(otherPoint, join);
-        mathUtil.clonePoint(basePoint, position);
       } else if (
         line.getCategory() == VectorCategory.Line.ExtendedPositionLine
       ) {
@@ -211,9 +210,9 @@ export default class MovePoint {
         let otherLine = mathUtil.createLine3(lineGeometry, otherPoint);
         let join = mathUtil.getJoinLinePoint(position, otherLine);
         mathUtil.clonePoint(otherPoint, join);
-        mathUtil.clonePoint(basePoint, position);
       }
     }
+    mathUtil.clonePoint(basePoint, position);
   }
 
   updateFixPoint(position, fixPointId) {