tasks: inputs variable of type pickString not evaluated

[MNASTM]

Steps to Reproduce:

1. Open a workspace
2. Create tasks.json :

{
    "version": "2.0.0",
    "tasks": [
        {
            "type": "shell",
            "label": "echo pickString",
           "command": "echo",
            "args": ["${input:pickStringTest}"]
        },
        {
            "type": "shell",
            "label": "echo promptString",
            "command": "echo",
            "args": ["${input:promptStringTest}"]
        }
    ],
    "inputs": [
        {
            "type": "pickString",
            "id": "pickStringTest",
            "description": "pick string",
            "options": [
                "option1",
                "option2"
            ],
            "default": "option1"
        },
        {
            "id": "promptStringTest",
            "type": "promptString",
            "description": "prompt string",
            "default": "promptOption"
        }
    ]
}

3. Run Task 'echo pickString'
4. Select 'option1'
5. See terminal output: ${input:pickStringTest}
   Expected: option1

Additional Information

• Operating System: Windows
• Theia Version: 1.27

[sdirix]

I recently stumbled about this problem in Linux too, so this issue is not restricted to Windows and is still there in the latest Theia.