Multiple extensions cannot ne installed in the latest ComfyUI Desktop

### Prerequisites

- [x] I am running the latest version of ComfyUI
- [x] I have custom nodes enabled

### What happened?

Some custom nodes like ComfyUI-HQ-Image-Save, OpenImageIO for Comfy and comfy-oiio in ComfyUI Desktop can't be installed. After pressing "install" and restarting backend, the "install" buttons doesn't turn into "uninstall". And there is no new nodes in the All installed tab. And nothing is created in the C:\Users\USERNAME\Documents\ComfyUI\custom_nodes folder. Even manually cloning the custom nodes into the folder doesn't work. There are a lot of cutom modes that behave like this. Here are just 3 examples. Logs when installing in the Nodes Manager are as follows:

ComfyUI-HQ-Image-Save:
[ComfyUI-Manager] The ComfyRegistry cache update is still in progress, so an outdated cache is being used.
FETCH DATA from: C:\Users\ag47\Documents\ComfyUI\.venv\Lib\site-packages\comfyui_manager\custom-node-list.json [DONE]
Download: git clone 'https://github.com/spacepxl/ComfyUI-HQ-Image-Save'
[!] Traceback (most recent call last):
[!] File "C:\Users\ag47\Documents\ComfyUI\.venv\Lib\site-packages\comfyui_manager\common\git_helper.py", line 12, in
[!] from comfyui_manager.common.timestamp_utils import get_backup_branch_name
[!] File "C:\Users\ag47\Documents\ComfyUI\.venv\Lib\site-packages\comfyui_manager\__init__.py", line 6, in
[!] from comfy.cli_args import args
[!] ModuleNotFoundError: No module named 'comfy'
[ComfyUI-Manager] Installation failed:
Failed to clone repo: https://github.com/spacepxl/ComfyUI-HQ-Image-Save

OpenImageIO for Comfy:
[ComfyUI-Manager] The ComfyRegistry cache update is still in progress, so an outdated cache is being used.
FETCH DATA from: C:\Users\ag47\Documents\ComfyUI\.venv\Lib\site-packages\comfyui_manager\custom-node-list.json [DONE]
[ComfyUI-Manager] Installation failed:
Node 'comfy-oiio@nightly' not found in [ManagerChannel.dev, ManagerDatabaseSource.cache]

comfy-oiio:
[ComfyUI-Manager] The ComfyRegistry cache update is still in progress, so an outdated cache is being used.
FETCH DATA from: C:\Users\ag47\Documents\ComfyUI\.venv\Lib\site-packages\comfyui_manager\custom-node-list.json [DONE]
Download: git clone 'https://github.com/melMass/comfy_oiio'
[!] Traceback (most recent call last):
[!] File "C:\Users\ag47\Documents\ComfyUI\.venv\Lib\site-packages\comfyui_manager\common\git_helper.py", line 12, in
[!] from comfyui_manager.common.timestamp_utils import get_backup_branch_name
[!] File "C:\Users\ag47\Documents\ComfyUI\.venv\Lib\site-packages\comfyui_manager\__init__.py", line 6, in
[!] from comfy.cli_args import args
[!] ModuleNotFoundError: No module named 'comfy'
[ComfyUI-Manager] Installation failed:
Failed to clone repo: https://github.com/melMass/comfy_oiio

### Steps to Reproduce

1. Open ConfyUI Desktop.
2. Install extension ComfyUI-HQ-Image-Save.
3. Check All installed tab and the C:\Users\USERNAME\Documents\ComfyUI\custom_nodes folder.

### How is this affecting you?

Feature doesn't work as expected

### ComfyUI Frontend Version

v0.8.8

### Browser

Other

### Console Errors

```javascript

```

### Logs

```shell
[ComfyUI-Manager] The ComfyRegistry cache update is still in progress, so an outdated cache is being used.
FETCH DATA from: C:\Users\ag47\Documents\ComfyUI\.venv\Lib\site-packages\comfyui_manager\custom-node-list.json [DONE]
Download: git clone 'https://github.com/spacepxl/ComfyUI-HQ-Image-Save'
[!] Traceback (most recent call last):
[!] File "C:\Users\ag47\Documents\ComfyUI\.venv\Lib\site-packages\comfyui_manager\common\git_helper.py", line 12, in
[!] from comfyui_manager.common.timestamp_utils import get_backup_branch_name
[!] File "C:\Users\ag47\Documents\ComfyUI\.venv\Lib\site-packages\comfyui_manager\__init__.py", line 6, in
[!] from comfy.cli_args import args
[!] ModuleNotFoundError: No module named 'comfy'
[ComfyUI-Manager] Installation failed:
Failed to clone repo: https://github.com/spacepxl/ComfyUI-HQ-Image-Save
```

### Additional Context

OS
win32
Python Version
3.12.11 (main, Aug 18 2025, 19:17:54) [MSC v.1944 64 bit (AMD64)]
Embedded Python
false
Pytorch Version
2.10.0+cu130
Arguments
C:\Users\ag47\AppData\Local\Programs\ComfyUI\resources\ComfyUI\main.py --user-directory C:\Users\ag47\Documents\ComfyUI\user --input-directory C:\Users\ag47\Documents\ComfyUI\input --output-directory C:\Users\ag47\Documents\ComfyUI\output --front-end-root C:\Users\ag47\AppData\Local\Programs\ComfyUI\resources\ComfyUI\web_custom_versions\desktop_app --base-directory C:\Users\ag47\Documents\ComfyUI --database-url sqlite:///C:/Users/ag47/Documents/ComfyUI/user/comfyui.db --extra-model-paths-config C:\Users\ag47\AppData\Roaming\ComfyUI\extra_models_config.yaml --log-stdout --listen 127.0.0.1 --port 8003 --enable-manager
RAM Total
93.63 GB
RAM Free
70.49 GB

┆Issue is synchronized with this [Notion page](https://www.notion.so/Issue-9204-Multiple-extensions-cannot-ne-installed-in-the-latest-ComfyUI-Desktop-3126d73d3650817693d3dafef8feb483) by [Unito](https://www.unito.io)