波形查看器删除重复信号异常

1. 导入两个不同层次的clk信号

<img width="3662" height="948" alt="Image" src="https://github.com/user-attachments/assets/3b90aa95-e507-4f1d-9d7f-6a99a134fc3e" />
2. 选择删除信号，右键删除，剩余的信号无法删除，且信号对应的波形显示异常

<img width="3642" height="700" alt="Image" src="https://github.com/user-attachments/assets/505f2c7b-d362-4e1a-95c4-2dee8065ed48" />