[Bluez] GATT battery service doesn't seem to function

[Pavel Nikulin <pavel@xxxxxxxxxxxx>]

Hello,

I have to return to the topic of GATT battery service, it doesn't seem
to be working. My Rapoo bt 4.0 mouse shows
"0000180f-0000-1000-8000-00805f9b34fb" attribute ("battery service",)
but I see nothing exposed on the dbus interface.

Can somebody with a BT 4.0 mouse that has battery service check if it
works for them?