Keep .cs in file-based app virtual .csproj file name#53182

jjonescz wants to merge 2 commits intodotnet:release/10.0.3xxdotnet/sdk:release/10.0.3xxfrom

jjonescz:48828-cs-in-proj-namejjonescz/dotnet-sdk:48828-cs-in-proj-nameCopy head branch name to clipboard