Path Variables uses the platform slashes instead of always forward slashes

[pbricout]

Issue Type: Bug

On Windows path variables like ${relativeFile} or ${workspaceFolder} are return in the platform format. I.E. using backslashes instead of forward slashes, this seems to be recent regression from this issue:
#40256
According to this issue forward slashes should be used on all OSes.
Doing this on windows, when the shell is bash is failing:

        "tasks": [{
            "label": "echo",
            "type": "shell",
            "command": "echo ${workspaceFolder}",
            "problemMatcher": []
        }]

Will show abc instead of a/b/c.
My bash scripts are not working any more.
Is there a setting to control the behaviour? I could not find one.

Doing this work as the path is in the platform format:

    "tasks": [
        {
            "label": "echo",
            "type": "process",
            "command": "cmd.exe",
            "args": [
                "/C",
                "echo",
                "${workspaceFolder}"
            ],
            "problemMatcher": []
        },

Trying to find if there is a solution, the following discussion suggest that there should be a command to specify whether to replace slashes or not, but I could not find such a thing:
#37438

VS Code version: Code 1.32.3 (a3db5be, 2019-03-14T23:43:35.476Z)
OS version: Windows_NT x64 6.1.7601

System Info

Item	Value
CPUs	Genuine Intel(R) CPU 0 @ 2.30GHz (4 x 2307)
GPU Status	2d_canvas: enabled checker_imaging: disabled_off flash_3d: enabled flash_stage3d: enabled flash_stage3d_baseline: enabled gpu_compositing: enabled multiple_raster_threads: enabled_on native_gpu_memory_buffers: disabled_software rasterization: unavailable_off surface_synchronization: enabled_on video_decode: enabled webgl: enabled webgl2: enabled
Memory (System)	7.97GB (0.15GB free)
Process Argv
Screen Reader	no
VM	0%

Extensions (14)

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githistory	don	0.4.6
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python	ms-	2019.2.5558
cpptools	ms-	0.22.0
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vscode-hexdump	sle	1.7.2
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[isidorn]

As designed, more details here #70050 (comment)

[pbricout]

This solution can't work in my case, see my comments in the other issue:
#70050 (comment)

[pbricout]

Found a clean solution to my problem, see my comment here:
#70050 (comment)