Properties provided to dotnet run are also tunneled through to the application regardless of double dash (--) with .NET 5

[ThomasMader]

The problem can be easily reproduced by running:

dotnet run --project <pathToCsprojFile> -p:Version=1.0.0 -- Parameter1

The project which is started by the dotnet run command should contain the following file:

using System;

namespace Test
{
	internal class ListProgramArguments
	{
		internal static void Main(string[] args)
		{
			Console.WriteLine($"Args provided: {string.Join(", ", args)}");
		}
	}
}

If the dotnet run command is executed via .NET sdk 5.0.402 the output is wrong:

Args provided: Version=1.0.0, Parameter1

If it is run with .NET 6.0.100-rc.2.21505.57 it's correct:

Args provided: Parameter1

To me it looks like this behavior should be ported to .NET 5. The documentation https://docs.microsoft.com/en-us/dotnet/core/tools/dotnet-run describes that this should work and since it works in .NET 6 I wondered if that was caused by a forgotten backport or if it was a conscious decision because of some breaking change concerns or something like that.

[marcpopMSFT]

Old issue triage: Looks like the original report said this was broken in 5 but fixed in 6 so closing.