TagHelpers and ViewComponents poc

1 poc.txt

The basic idea is, that I want to avoid writing html in the tag helper class.
This poc, if it worked, would simply pass the ModelExpression down to a view component, where the actual html lives.
From there we would then render various tag helpers based on the ModelExpression.

Unfortunately, it seems that tag helpers in the view component simply creates a ModelExpression of the passed in ModelExpression, inception?
So, to make it work, I guess I would need to "trick" tag helpers into accepting an existing ModelExpression? Doable?

2 View.cshtml

@model SomeModel
<div>
    <form-group asp-for="SomeProperty" />
</div>

3 TagHelper.cs

[HtmlTargetElement("form-group", TagStructure = TagStructure.WithoutEndTag)]
public class FormGroupTag : TagHelper
{
    private const string ForAttributeName = "asp-for";
    private readonly IViewComponentHelper _viewComponentHelper;
        
    public FormGroupTag(IViewComponentHelper viewComponentHelper)
    {
        _viewComponentHelper = viewComponentHelper;
    }
    
    [HtmlAttributeNotBound]
    [ViewContext]
    public ViewContext ViewContext { get; set; }

    [HtmlAttributeName(ForAttributeName)]
    public ModelExpression For { get; set; }
    
    public override async Task ProcessAsync(TagHelperContext context, TagHelperOutput output)
    {
        output.TagName = null;
        
        ((IViewContextAware)_viewComponentHelper).Contextualize(ViewContext);        
        var model = new FormGroupContext { For = For };        
        var result = await _viewComponentHelper.InvokeAsync("FromGroupComponent", model);
            
        output.Content.SetHtmlContent(result);
    }
}

4 ViewComponent.cs

public class FromGroupComponent : ViewComponent
{
    public async Task<IViewComponentResult> InvokeAsync(FormGroupContext model)
    {
        return View(model);
    }
}

5 ViewComponent.cshtml

@model FormGroupContext
<div class="form-group">
    @* 
        Expectation:
        <label for="SomeProperty" class="label">SomeProperty</label>
        Actual result:
        <label for="For" class="label">For</label> 
    *@
    <label asp-for="For" class="label"></label>
    <input type="text" asp-for="For" class="input" />
</div>