ssh-agent forwarding from WSL to devcontainer does not work after sleep

• VSCode Version:
  Version: 1.105.1 (system setup)
  Commit: 7d842fb85a0275a4a8e4d7e040d2625abbf7f084
  Date: 2025-10-14T22:33:36.618Z
  Electron: 37.6.0
  ElectronBuildId: 12502201
  Chromium: 138.0.7204.251
  Node.js: 22.19.0
  V8: 13.8.258.32-electron.0
  OS: Windows_NT x64 10.0.26200
• Local OS Version: Windows 11 25H2 (Build 26200.6899)
• WSL Version (Windows):
  WSL-Version: 2.6.1.0
  Kernelversion: 6.6.87.2-1
  WSLg-Version: 1.0.66
  MSRDC-Version: 1.2.6353
  Direct3D-Version: 1.611.1-81528511
  DXCore-Version: 10.0.26100.1-240331-1435.ge-release
  Windows-Version: 10.0.26200.6899
• WSL Version (Linux): Linux MAINFRAME 6.6.87.2-microsoft-standard-WSL2 (Ubuntu)
• Remote OS Version (decontainer): ubuntu:22.04
• Remote Extension/Connection Type: Dev Containers (ms-vscode-remote.remote-containers 0.427.0)
• Logs:

success (git fetch -v):

From :test
= [up to date] feature/inital-setup -> origin/feature/inital-setup
= [up to date] main -> origin/main

fail (git fetch -v):
git@: Permission denied (publickey).
fatal: Could not read from remote repository.

Please make sure you have the correct access rights
and the repository exists.

Steps to Reproduce:

1. Create a git repo in WSL
2. Start ssh-agent in WSL (e.g. with keychain, ssh key with password)
3. Try e.g. git fetch (in WSL) (should work)
4. Reopen in devcontainer
5. Try e.g. git fetch (in devcontainer) (should work)
6. Wait until Sleep of Windows
7. Login again
8. Try e.g. git fetch (in devcontainer) (should NOT work)
9. Try e.g. git fetch (in WSL) (should work)

Does this issue occur when you try this locally?: Yes
Does this issue occur when you try this locally and all extensions are disabled?: N.A.

The ssh-agent forwarding from WSL to devcontainer does not work after sleep. But in WSL it is still working.