Ubuntu Budgie: How to use Alt+Shift to switch keyboard layouts?

In Ubuntu Budgie 17.04, you would have noticed that using the GUI Settings - Keyboard - Typing - Switch to Input Source does not respond to a ALT+Shift by itself. You need a third keystroke.

However you can go behind the scenes and install the package dconf-editor and edit one or both of the following keys to get things working:

Go to org.gnome.desktop.wm.keybindings

change switch-input-source to ['<Alt>Shift_L']

Likewise the key switch-input-source-backward change to ['<Shift>Alt_L']

Because I like commmand line (fast) solutions, I tried the above gsettings command, but had to modify it:

gsettings set org.gnome.desktop.wm.keybindings switch-input-source "['<Alt>Shift_L']"

By default, it is Super+Space (same as on MacOS X). You can run this terminal command to change it.

gsettings set org.gnome.desktop.wm.keybindings switch-input-source "['<Alt>Shift_L', '<Super>Shift_L']"