复制edge时无论是否有targetcell和sourcecell都只复制edge，剪切node时不剪切其connectedEdge

### 问题描述

复制edge时无论是否有targetcell和sourcecell都只复制edge，剪切node时不剪切其connectedEdge

### 重现链接

无

### 重现步骤

1. edge有target或source的node
2. 复制edge的时候，node也会复制上

1.node有connected的edge
2.剪切node时，connected的edge也被一并剪切

### 预期行为

1. 复制edge行为独立
2. 剪切node行为独立

### 平台

- 操作系统: [macOS]
- 网页浏览器: [Google Chrome]
- X6 版本: [2.11.3.]

### 屏幕截图或视频（可选）

_No response_

### 补充说明（可选）

_No response_

No source files, tests, or entry points are named. Start by reproducing the copy-edge and cut-node cases in X6 2.11.3, then trace the copy and cut behavior for connected cells; done means copying an edge and cutting a node operate independently as described in the expected behavior.

Written by the indexing model from the issue text.