[Remote-SSH Bug]: Directives in config files that are included are erroneously case-sensitive

Is there an existing issue for this bug?

• I have searched the existing issues

Required Troubleshooting Steps

• I have followed these troubleshooting steps
• I have tried both values of the remote.SSH.useLocalServer setting

Connect Locally

It connects successfully

->

No response

Expected Behavior

VS Code seems to be case sensitive when parsing SSH config files that are included by the main config file. Specifically, it seems to recognize only Host directives but not HOST or host. According to the ssh_config spec, directives are case-insensitive. And indeed, HOST and host seem to work properly when put in the main config file.

Steps To Reproduce

1. In the ~/.ssh/config file add the line

Include test.config

2. Make file ~/.ssh/test.config with contents

HOST test
USER test

The host test does not appear in the Remote Explorer after refreshing it. However, replacing HOST -> Host and USER -> User makes the host appear.

Remote-SSH Log

Only file saving operations in the log, nothing relevant.

Anything else?

No response

Reproduce with ~/.ssh/config including test.config, using lowercase or uppercase HOST and USER directives, then refresh the Remote Explorer. Start by tracing how the included file is parsed, while checking both values of remote.SSH.useLocalServer. Done means included directives are treated case-insensitively and the test host appears consistently.