[MCPE] No sound and (sometimes) bad state after backgrounding/foregrounding the game

NOTE: This is for Minecraft PE 0.9.5, which didn't appear in the list of projects when I was creating this bug.

Three issues when backgrounding then foregrounding the app after the latest update. Please let me know if these are unrelated and I should file additional bugs.

1. When I background then foreground the app, there is no sound. I have to quit the app via the task switcher and relaunch it for sound to start working again. This also happens if the game is interrupted by a phone call. This is 100% reproducible in all of my worlds and I've attached logs.

2. I've also encountered the game resuming to the wrong state in this situation; it was "earlier" then it should have been. When I went back to the title screen and then started the game again, it was fixed. Not reproducible at will.

3. Once, I backgrounded the game while I was in an enclosed area. When I foregrounded it several hours later, the "you have died" message was shown. I respawned and none of my items were present on the ground where I died as they usually area.

STEPS TO REPRODUCE

1. Background the app.

2. Foreground it.

3. Do something that should trigger sound.
Expected: sound.
Actual: no sound.

4. Kill the app via the app switcher.

5. Launch the app.

6. Start an existing game. Do something that should trigger sound.
Expected: sound
Actual: as expected.