🐛 Bug Report

Sometimes ExcelJS puts the "Implicit intersection operator: @" where it doesn't work

Lib version: 4.3.0

Steps To Reproduce

I'm using the following code to create a shared formula in the excel file I'm generating

 worksheet.fillFormula(
    `J2:J${lastRowNumber}`,
    'IFS(I2<0.9, "POOR! (--)", I2<1, "(-)", I2=1, "OK", I2>1.2, "BIG (++)", I2>1, "(+)")'
  );

But then, in the resulting excel, I get the formula with an at @ character in front of it.
And so I get a #NAME error in the cell.

See screenshot here

The expected behaviour:

I'm expecting the formula to appear in the excel file without the @ character.

Additional notes

I initially created this bug as a discussion, but then I saw others have the same problem and they worked around it, so I guess it's a bug.