Removing default keyboard layout crashes desktop and results in failure to initialise desktop after login

[Caleb Howland (Menzador)]

The Budgie desktop crashes if the default keyboard layout (for me, English (US) or the "us" layout in xkbmap) is deselected on a 17.04.20170108 development branch system.

This problem is known upstream and should be linked as such.

ProblemType: Bug
DistroRelease: Ubuntu 17.04
Package: budgie-desktop 10.2.9-2ubuntu1
ProcVersionSignature: Ubuntu 4.9.0-11.12-generic 4.9.0
Uname: Linux 4.9.0-11-generic x86_64
ApportVersion: 2.20.4-0ubuntu1
Architecture: amd64
CurrentDesktop: Budgie:GNOME
Date: Mon Jan 9 15:04:57 2017
InstallationDate: Installed on 2017-01-09 (0 days ago)
InstallationMedia: Ubuntu-Budgie 17.04 "Zesty Zapus" - Alpha amd64 (20170108)
PackageArchitecture: all
SourcePackage: budgie-desktop
UpgradeStatus: No upgrade log present (probably fresh install)

[fossfreedom (fossfreedom)]

This issue has been confirmed upstream - bug report https://github.com/budgie-desktop/budgie-desktop/issues/740