Trying to add GOOGL, but algo gets GOOG assigned

Hello everyone, I am trying to follow a simple strategy of defining self.AddUniverse(self.CoarseSelectionFunction, self.FineSelection) based on certain critera's . During runtime, my FineSlection select GOOGL and then I am initiating SymbolData object to monitor this ticker data

        for x in fine:
             symbolData = self.symbolDataBySymbol.get(x.Symbol)
           if symbolData is None:
                self.symbolDataBySymbol[x.Symbol]   = SymbolData(self, self.AddEquity(x.Symbol,self.resolution).Symbol,self.resolution)

class SymbolData:
    
    def __init__(self, algorithm, symbol, resolution):

        self.algorithm              = algorithm
        self.symbol                 = symbol
        self.resolution             = resolution

the problem is that I pass "GOOGL" but SymbolData.symbol sets "GOOG"

what am I doing wrong?

thanks