与diamond类型节点连接的边，在拖动时必定报错，将下面官网例子的矩形1改成diamond可复现

[knchen-java]

官网例子：

复现数据：
const data = {
nodes: [
{
id: '1',
type: 'diamond',
x: 100,
y: 100,
text: '矩形1',
},
{
id: '2',
type: 'ellipse',
x: 500,
y: 100,
text: '椭圆2',
},
{
id: '3',
type: 'polygon',
x: 100,
y: 250,
text: '多边形3',
},
{
id: '4',
type: 'diamond',
x: 300,
y: 250,
text: '菱形4',
},
],
edges: [
{
sourceNodeId: '1',
targetNodeId: '2',
startPoint: {
x: 100,
y: 60,
},
endPoint: {
x: 500,
y: 50,
},
type: 'polyline',
},
{
sourceNodeId: '2',
targetNodeId: '3',
type: 'line',
},
// TODO
{
sourceNodeId: '2',
targetNodeId: '4',
type: 'bezier',
},
],
};

[DymoneLewis]

感谢反馈，我们修复一下