Install button sometime doesn't change state when installing then displays error
Submitted by Sebastien Bacher
Link to original bug (#786058)
Description
Created attachment 357279 screenshot showing the issue
Using 3.25.4 on Ubuntu artful, sometime when clicking on "installing" the UI doesn't change to reflect that it's start the installation, then clicking the button again gives an error ""do not know how to install app in state installing"