qmllint: claims binding will not update on a signal handler (i.e. not a binding)

import QtQuick
Item {
  DropArea {
    onDropped: (drop) => {
      console.log(drop.hasUrls)
    }
  }
}

/Users/user/Qt/6.10.0/macos/bin/qmllint test.qml 
Warning: test.qml:8:24: Reading non-constant and non-notifiable property hasUrls. Binding might not update when the property changes. [stale-property-read]
      console.log(drop.hasUrls)
                       ^^^^^^^