RazorPages do not respect HtmlFieldPrefix

[NTaylorMullen]

Is this a Bug or Feature request?:

Bug

Steps to reproduce (preferably a link to a GitHub repo with a repro project):

In any RazorPage add:

@{
    ViewData.TemplateInfo.HtmlFieldPrefix = "Prefix";
}

<form>
    <input asp-for="SomeModelProperty" />
</form>

Description of the problem:

The generated input tag helper does not respect the Prefix field prefix.

This works: ViewContext.ViewData.TemplateInfo.HtmlFieldPrefix = "Prefix";

@pranavkm said he had an idea as to why.

[pranavkm]

This is a variant of aspnet/Mvc#7675. We copy ViewData here - https://github.com/aspnet/Mvc/blob/master/src/Microsoft.AspNetCore.Mvc.RazorPages/Infrastructure/PageResultExecutor.cs#L89-L100, we might need to do more.

[mkArtakMSFT]

Hi. Thanks for contacting us.
We're closing this issue as there was not much community interest in this ask for quite a while now.