QML FontLoader.name confusion

I downloaded from Google Fonts two .ttf files on my project folder:

1. Montserrat-ExtraLight.ttf
2. Montserrat-Black.ttf

I set propperly the .qrc file in order to contain both of them.

Suppose I have the next .qml file:

import QtQuick 2.7
import QtQuick.Layouts 1.2
import QtQuick.Controls.Universal 2.0

Rectangle{
        id: rectangle
        height: 500
        width: 700
          Column{
              FontLoader { id: myCustomFont1; source: "../Fonts/Montserrat/Montserrat-ExtraLight.ttf" }
              FontLoader { id: myCustomFont2; source: "../Fonts/Montserrat/Montserrat-Black.ttf" }
              Text{
                  ...
                  text: "Qt for python"
                  font.family: myCustomFont1.name
                  ...
              }
              Text{
                  ...
                  text: "Qt for c++"
                  font.family: myCustomFont2.name
                  ...
              }
          }
        
}

The problem is that the myCustomFont1.name and the myCustomFont2.name are the same, namely "Montserrat" and I don't have any solution to make distinction between them. Therefore even if I specified the correct FontLoader-s id-s, the second text will have the same font.family like the first text. Could be possible to solve this problem somehow?