类型：错误

1. 打开两个markdown文件
2. 打开markdown预览
3. 在markdown文件之间切换焦点，查看预览更新
4. 重启扩展主机(现在我们支持在扩展更新时进行窗口重载，而不是完全重新加载)
5. 再次尝试在markdown文件之间切换焦点
   🐛 => 预览停止更新
   VS Code版本：Code - Insiders 1.88.0-insider ( 9e0b3f3 , 2024-03-27T21:47:00.626Z)
   操作系统版本：Windows_NT x64 10.0.22631
   模式：
   扩展(31个)
   | 扩展名 | 作者(省略) | 版本 |
   | ------ | ------ | ------ |
   | codesnap | adp | 1.3.4 |
   | markdown-checkbox | bie | 0.4.0 |
   | markdown-emoji | bie | 0.3.0 |
   | simple-icons | com | 0.1.6 |
   | vsc-material-theme-icons | equ | 3.5.0 |
   | prettier-vscode | esb | 10.4.0 |
   | codespaces | Git | 1.16.17 |
   | copilot | Git | 1.176.792 |
   | copilot-chat | Git | 0.14.2024032701 |
   | remotehub | Git | 0.63.2024031101 |
   | vscode-drawio | hed | 1.6.6 |
   | fluent-icons | mig | 0.0.18 |
   | vscode-language-pack-es | MS- | 1.88.2024032709 |
   | vscode-language-pack-fr | MS- | 1.88.2024032709 |
   | vscode-language-pack-pt-BR | MS- | 1.88.2024032709 |
   | remote-containers | ms- | 0.353.0 |
   | remote-ssh | ms- | 0.111.2024032715 |
   | remote-ssh-edit | ms- | 0.86.0 |
   | remote-wsl | ms- | 0.88.0 |
   | azure-repos | ms- | 0.39.2024031101 |
   | hexeditor | ms- | 1.9.14 |
   | remote-explorer | ms- | 0.5.2024031109 |
   | remote-repositories | ms- | 0.41.2024022202 |
   | remote-server | ms- | 1.6.2024032709