Unable to open recent remote folder/workspace when tunnel is tagged with uppercase character

[takerusilt]

• Extension version: v1.6.2024032609
• VSCode Version: 1.87.2
• Local OS Version: macOS 13.6.3 / 14.0
• Remote OS Version:
• Remote Extension/Connection Type: Server

Steps to Reproduce:

1. On remote computer, turn on Remote Tunnel Access. A tunnel is created with tag in uppercase character, e.g. "XXXX"
2. On local computer, connect tunnel "XXXX", open arbitrary file/folder/workspace on remote computer
3. Close remote connection
4. Trigger "File: Open Recent..."
5. Select "yyyyy [XXXX]" entry (which is created by step 2)

Expected:

Able to resolve tunnel XXXX and open remote file/folder/workspace (given that current session is already logged in having access to tunnel XXXX)

Result:

Prompted for login, where output terminal for "Remote - Tunnels" shows:

2024-03-26 18:03:03.192 [info] Resolving tunnel+xxxx...
2024-03-26 18:03:03.210 [info] Creating new tunnel proxy server

Selecting the same account to proceed resulted in the following error:

2024-03-26 18:05:50.523 [error] [proxy] Tunnel with tag xxxx not found

It seems the recent entry is with the URI "vscode://tunnel+xxxx/yyyy" which cause it to resolve tunnel with lower-cased tag.