HF_ENDPOINT is no working with slashes after the base url

[oriyafe]

Describe the bug

I'm working with reverse proxy. the url is: /huggingfacel-public and it stopped to work after this PR:
#2721

Reproduction

1. export HF_ENDPOINT=http://127.0.0.1:7070/huggingfacel-public
2. run the script:
   from huggingface_hub import snapshot_download snapshot_download(repo_id="Dorshu/SDUpscalers", revision="main", force_download=True)

The client is trying to reach:
http://127.0.0.1:7070/Dorshu/SDUpscalers/resolve/87288b9ce43ffefeb9f90067f200bddfc76acb59/4x-UltraSharp.pth

instead of:
http://127.0.0.1:7070/huggingfacel-public/Dorshu/SDUpscalers/resolve/87288b9ce43ffefeb9f90067f200bddfc76acb59/4x-UltraSharp.pth

Logs

System info

- huggingface_hub version: 0.29.0.dev0
- Platform: macOS-15.0.1-arm64-arm-64bit-Mach-O
- Python version: 3.13.1
- Running in iPython ?: No
- Running in notebook ?: No
- Running in Google Colab ?: No
- Running in Google Colab Enterprise ?: No
- Token path ?: /Users/oriya/.cache/huggingface/token
- Has saved token ?: True
- Configured git credential helpers: osxkeychain
- FastAI: N/A
- Tensorflow: N/A
- Torch: N/A
- Jinja2: 3.1.5
- Graphviz: N/A
- keras: N/A
- Pydot: N/A
- Pillow: 11.1.0
- hf_transfer: N/A
- gradio: 5.13.2
- tensorboard: N/A
- numpy: 2.2.2
- pydantic: 2.10.6
- aiohttp: 3.11.11
- ENDPOINT: http://127.0.0.1:7070/huggingfacel-public
- HF_HUB_CACHE: /Users/oriya/.cache/huggingface/hub
- HF_ASSETS_CACHE: /Users/oriya/.cache/huggingface/assets
- HF_TOKEN_PATH: /Users/oriya/.cache/huggingface/token
- HF_STORED_TOKENS_PATH: /Users/oriya/.cache/huggingface/stored_tokens
- HF_HUB_OFFLINE: False
- HF_HUB_DISABLE_TELEMETRY: False
- HF_HUB_DISABLE_PROGRESS_BARS: None
- HF_HUB_DISABLE_SYMLINKS_WARNING: False
- HF_HUB_DISABLE_EXPERIMENTAL_WARNING: False
- HF_HUB_DISABLE_IMPLICIT_TOKEN: False
- HF_HUB_ENABLE_HF_TRANSFER: False
- HF_HUB_ETAG_TIMEOUT: 10
- HF_HUB_DOWNLOAD_TIMEOUT: 10

[Wauplin]

Hi @oriyafe , thanks for reporting and sorry for the inconvenience. Bug has already been reported in #2806 and will be fixed by #2807. Once that's merged, I'll make a patch release.