Serialization to archive corrupts data

Values stored inside variables becomes corrupted after creating an FBufferArchive variable (FBufferVar), setting FBufferVar.ArForceByteSwapping = true; and then storing the original value in FBufferVar

1. Open UE4Editor (any project)
2. Add code to project based on Actor (MyActor)
3. Add the following to the Tick function in the .cpp file

   float foo = 1234.56789e+20;
    FBufferArchive ar;
    
    UE_LOG( LogTemp, Warning, TEXT( "Original value: %g" ), foo );
    
    ar << foo;
    UE_LOG( LogTemp, Warning, TEXT( "Before Serialization: %g" ), foo );
    
    ar.ArForceByteSwapping = true;
    ar << foo;
    UE_LOG( LogTemp, Warning, TEXT( "After Serialization: %g" ), foo );
   

4. Compile the code
5. Create a blueprint based on MyActor (MyActorBP)
6. Add instance of MyActorBP to the level and PIE

Result:
Original & Before serialization values are equal however the value of foo printed to the output log changes after setting ar.ArForceByteSwapping = true;

[UE-23848] Bug Status

i have this problem UE4CC-Windows-58DC12AF4B97F057BD108FBFF569B2E9_0000

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