Multiple devcontainers not detected when source is in a volume

• VSCode Version: 1.97.2 (Universal)
• Local OS Version: macOS 15.1.1 (24B2091)
• Remote OS Version: Ubuntu 20.04.6 LTS
• Remote Extension/Connection Type: Dev Containers
• Logs: N/A

Steps to Reproduce:

1. Given a git repository with the following devcontainers:

.devcontainer/
├── gpu
│   └── devcontainer.json
└── cpu
    └── devcontainer.json

2. Run Dev Containers: Clone Repository in Container Volume
3. Wait for code to be pulled
4. Get prompt indicating that no workspace defined devcontainer is found

• Expected: A choice of workspace defined devcontainers gpu or cpu
• Note: When not using a container volume, i.e. with code already pulled locally or on a remote machine, and using Dev Containers: Open Folder in Container this works as expected with the same repo.

Does this issue occur when you try this locally?: No (with local source tree instead of a container volume)
Does this issue occur when you try this locally and all extensions are disabled?: N/A