Razor intellisense not working with tag helpers using ParentTag

[jamezamm]

Hi,

I am using Visual Studio Enterprise 2022 (x64) Version 17.12.5.

Please note that I had previously opened an issue #9397 related to the ParentTag.

I have the below tag helper classes:

/// <summary>
/// This is a container
/// </summary>
[HtmlTargetElement("container")]
public class ContainerTagHelper : TagHelper
{
	public override void Process(TagHelperContext context, TagHelperOutput output)
	{
	}
}

/// <summary>
/// This is a header
/// </summary>
[HtmlTargetElement("header", ParentTag = "container")]
public class ContainerHeaderTagHelper : TagHelper
{
        public string Attribute { get; set; }

	public override void Process(TagHelperContext context, TagHelperOutput output)
	{
	}
}

The razor page syntax:

<container>
	<header attribute='test'></header>
</container>

When starting to input the attribute name (Ex: 'attr'), no list is displayed with all the available properties for ContainerHeaderTagHelper.

Please note that once you manually input the name 'attribute', the property is immediately recognized as a property.