[Q] Nfc Service wakelock topic

Whenever I check Wakelock Detector, I see "Nfc Service" on the list (com.android.nfc). It's not major -- phone's been up and running off the charger for a little more than five hours, NfcService:mRoutingWakeLock is showing at 0.4 s/x54.

NFC is unchecked in Settings.

Does anyone know how I can resolve this?