Interpolated String Concatenation in .NET 6 is incorrect

[jayendusharma]

Description

Interpolated string concatenation output is different between .NET 5 and .NET 6 preview 7

Configuration

Regression?

yes

Other information

Running the following code snippet in .NET 5

using System;

int a = 0;
string b = nameof(a);
Console.WriteLine($"Name, " + $"Value {a} ," + $"Name {b} .");
Console.ReadLine();

gives the following output: "Name, Value 0 ,Name a ."

in .NET 6 the output is: "Name, ,0Value .aName".

This is incorrect and shouldn't change

[dotnet-issue-labeler]

I couldn't figure out the best area label to add to this issue. If you have write-permissions please help me learn by adding exactly one area label.

[ufcpp]

#55461 (comment)

[stephentoub]

Duplicate of #55461

[jcouv]

This was fixed in 17.0p4 by PR #55494. Thanks for reporting