Opening the Boxes app runs all boxes

sudo apt install gnome-boxes
Create 2 Virtual Machines ("boxes"), one for 2 different Ubuntu flavors
Power off all Virtual Machines and close the app

Open the Boxes app

What Happens
============
After a few seconds, all the boxes start. They'll keep running even when the app is closed unless you explicitly right click on them and select Force Shutdown.

Right-click on the box and select Properties. Switch to the System tab. Confirm that "Run in background" is turned off.

What Should Happen
==================
Apparently the Boxes are to be paused automatically except when clicked on and focused

I reported this to GNOME. It seems to be fixed in Fedora 24 when they updated to qemu 2.6.2 this week.

ProblemType: Bug
DistroRelease: Ubuntu 16.10
Package: qemu-kvm 1:2.6.1+dfsg-0ubuntu5
ProcVersionSignature: Ubuntu 4.8.0-17.19-generic 4.8.0-rc7
Uname: Linux 4.8.0-17-generic x86_64
ApportVersion: 2.20.3-0ubuntu7
Architecture: amd64
CurrentDesktop: GNOME
Date: Wed Oct 5 07:25:30 2016
EcryptfsInUse: Yes
InstallationDate: Installed on 2016-08-11 (54 days ago)
InstallationMedia: Ubuntu-GNOME 16.10 "Yakkety Yak" - Alpha amd64 (20160811)
Lsusb:
 Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
 Bus 001 Device 003: ID 8087:0a2b Intel Corp.
 Bus 001 Device 002: ID 04f2:b57e Chicony Electronics Co., Ltd
 Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
MachineType: LENOVO 80SA
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.8.0-17-generic.efi.signed root=UUID=352e459f-ebca-4dc8-86e3-b078a000910b ro quiet splash vt.handoff=7
SourcePackage: qemu
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 05/17/2016
dmi.bios.vendor: LENOVO
dmi.bios.version: 0VCN18WW(V1.03)
dmi.board.asset.tag: NO Asset Tag
dmi.board.name: Lenovo ideapad F
dmi.board.vendor: LENOVO
dmi.board.version: SDK0J40709 WIN
dmi.chassis.asset.tag: NO Asset Tag
dmi.chassis.type: 10
dmi.chassis.vendor: LENOVO
dmi.chassis.version: Lenovo ideapad FLEX 4-1470
dmi.modalias: dmi:bvnLENOVO:bvr0VCN18WW(V1.03):bd05/17/2016:svnLENOVO:pn80SA:pvrLenovoideapadFLEX4-1470:rvnLENOVO:rnLenovoideapadF:rvrSDK0J40709WIN:cvnLENOVO:ct10:cvrLenovoideapadFLEX4-1470:
dmi.product.name: 80SA
dmi.product.version: Lenovo ideapad FLEX 4-1470
dmi.sys.vendor: LENOVO