Playlist state for network locations not properly retained after device sleep

Description

If the device is put into sleep mode during a "play all" playlist from a network location, when woken it will wrongly attempt to resume the first file in the current location.

Expected behavior

If the device is put to sleep when VLC is active, it should resume from the current position when awoken.

Actual behavior

When awoken, the device attempts to resume at the correct time, but not within the correct file. It instead tries to resume in the first file of that location.

Steps to reproduce

1. Navigate dlna server to folder X
2. Select dots next to file that is not the first in folder, "play all"
3. During playback, sleep the device
4. Awaken and unlock the device
5. Currently open file is now the first of folder X, attempting to resume at the paused timestamp when device was put to sleep

Screenshot / video

Context

App version

3.5.1 revision 98a68bfd (VLC c509a1c)

Currently subscribed to beta channel in gplay

Android version

7

Device model

Lenovo Tab E7 (TB-8304F1)

App mode

Tablet