[bug] Using vscode shortcuts to switch between compressedFolders caused problems `Cannot read property 'previous' of undefined`

How to reproduce the bug

1. I use these shortcuts to switch left or right in compressedFolders:

   {
     "key": "shift+h",
     "command": "previousCompressedFolder",
     "when": "explorerViewletCompressedFocus && explorerViewletVisible && filesExplorerFocus && !explorerViewletCompressedFirstFocus && !inputFocus"
   },
   {
     "key": "shift+l",
     "command": "nextCompressedFolder",
     "when": "explorerViewletCompressedFocus && explorerViewletVisible && filesExplorerFocus && !explorerViewletCompressedLastFocus && !inputFocus"
   },
   {
     "key": "g h",
     "command": "firstCompressedFolder",
     "when": "explorerViewletCompressedFocus && explorerViewletVisible && filesExplorerFocus && !explorerViewletCompressedFirstFocus && !inputFocus"
   },
   {
     "key": "g l",
     "command": "lastCompressedFolder",
     "when": "explorerViewletCompressedFocus && explorerViewletVisible && filesExplorerFocus && !explorerViewletCompressedLastFocus && !inputFocus"
   },
   

2. Here is the workspace structure which the bug occurred:

   .
   └── test
       └── test1
           ├── test2
           └── test3
               └── README.md
   

   

3. Make sure the folders are expand. Don't fold them

4. All you need to do is ctrl + shift + p to execute command workbench.action.reloadWindow. After reloading, try to use shortcuts above to switch between folder test and test1, then the bug notice Cannot read property 'previous' of undefined or Cannot read property 'next' of undefined will be shown in the rightdown corner:

   

Some information may be useful

OS:
    Manjaro KDE Edition
VSCode Version:
    1.53.2
Vim Version:
    1.18.9

Reproduce the issue in the shown test/test1/test2/test3/README.md workspace with the listed previousCompressedFolder, nextCompressedFolder, firstCompressedFolder, and lastCompressedFolder shortcuts after running workbench.action.reloadWindow. Trace those command entry points and verify that switching between expanded compressed folders no longer reports an undefined previous or next property.