FSharp projects are removed from the solution when building from the engine

[fswadling]

Release Type: Official Release/GitHub (please choose appropriate option)

Version: 4.2

Platform(s): Windows

Describe the bug Running build from the editor is removing my fsharp projects from the .net solution.

To Reproduce Steps to reproduce the behavior:

1. Create a new stride project.
2. Add an fsharp project to the solution in visual studio
3. Run build from the game editor.
4. Return to visual studio. The fsharp project is unloaded.

Expected behavior Leave fsharp and vb.net projects alone.

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Log and callstacks If any, please attach here any log or callstack (preferably in a .txt file using GitHub drag and drop)

Additional context I'm not expecting extensive fsharp support anytime soon, but fsharp is a part of .net and I don't see why stride should be outright hostile to using it in the codebase.