拖动组件树会生成一个新的页面

[Deuscx]

Describe the bug 拖动组件树会生成一个新的页面

To Reproduce Steps to reproduce the behavior:

1. 选择一个组件
2. 拖动到根组件

Expected behavior 不会生成新的页面

Screenshots

https://github.com/Tencent/tmagic-editor/assets/48537979/727694a9-615e-4ad2-a783-2d009c0b70be

Desktop (please complete the following information):

• OS: Windows
• Browser Chrome
• Version 118

Smartphone (please complete the following information):

• Device: [e.g. iPhone6]
• OS: [e.g. iOS8.1]
• Browser [e.g. stock browser, safari]
• Version [e.g. 22]

Additional context Add any other context about the problem here.