Android O: requestUuid is always null

[lesn1kk]

On Android O we are unable to resolve our own mac address using BRO mode because the Gatt client requestUuid is always null and since we use it to compare with expected uuid, the condition will never be fulfilled (see here).
I noticed however, that the mServiceUuid first 24 characters (as string) are the same as bluetoothGattCharacteristic.getUuid()'s. But I don't know if it has something to do with BRO mode specific UUID or anything else.
Anyway, when I compared bluetoothGattCharacteristic.getUuid() and mServiceUuid first 24 chars instead of bluetoothGattCharacteristic.getUuid() and requestUuid, I was able to resolve device's own BT mac address.