Is there an existing issue for this?

• I have searched the existing issues

Describe the bug

When partial contains

// partial view
// some html markup
@section [SectionName]
{
  [SectionBody]
}

([SectionBody] and [SectionName] are placeholders)
And then use this partial as

// Index.cshtml
// some html markup
<partial name="[PartialName]" />
@section [SectionName]
{
  [SectionBody]
}

and render it in _Layout
then in _Layout will be partial & index HTML markup BUT there will be ONLY SectionName from Index.cshtml and no from partial.

Expected Behavior

Sections from partials must be rendered in _Layout same as sections from pages.
In attached repo on page must be extra Partial loaded h1 text.

Steps To Reproduce

https://github.com/ParadiseFallen/AspNetCore.RazorPages.SectionIssue

Exceptions (if any)

No response

.NET Version

6.0.101

Anything else?

.net 6.0
aspnetcore 6
VS 2022

output of dotnet --info :
Version: 6.0.101
Commit: ef49f6213a

OS Name: Windows
OS Version: 10.0.19043
OS Platform: Windows
RID: win10-x64
Base Path: C:\Program Files\dotnet\sdk\6.0.101\

Host (useful for support):
Version: 6.0.1
Commit: 3a25a7f1cc

.NET SDKs installed:
5.0.402 [C:\Program Files\dotnet\sdk]
6.0.100 [C:\Program Files\dotnet\sdk]
6.0.101 [C:\Program Files\dotnet\sdk]

.NET runtimes installed:
Microsoft.AspNetCore.App 5.0.11 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App]
Microsoft.AspNetCore.App 6.0.0 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App]
Microsoft.AspNetCore.App 6.0.1 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App]
Microsoft.NETCore.App 3.1.22 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App]
Microsoft.NETCore.App 5.0.11 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App]
Microsoft.NETCore.App 6.0.0 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App]
Microsoft.NETCore.App 6.0.1 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App]
Microsoft.WindowsDesktop.App 3.1.22 [C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App]
Microsoft.WindowsDesktop.App 5.0.11 [C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App]
Microsoft.WindowsDesktop.App 6.0.0 [C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App]
Microsoft.WindowsDesktop.App 6.0.1 [C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App]