message: FormatDax - keep the original expression in case of formatting error
diff: @@ -59,6 +59,7 @@ namespace Sqlbi.Bravo.Controllers
  }
  else
  {
  + formattedMeasure.Expression = requestedMeasure.Expression; // in case of errors returns the original expression, as requested by Daniele
  formattedMeasure.Errors = daxformatterMeasure.Errors?.Select((e) => new FormatterError
  {
  Line = e.Line,
  