Comment 7 for bug 1499544

Another technique to consider wrt shortening profile names is to eschew the store's origin, which contributes to the length of the profile name. This would mean a (somewhat convoluted) privacy violation when installing snaps of the same name from different developers. Consider: install app foo from developer bar (today, creates app-specific dirs with foo.bar). Then user uninstalls foo from bar (which leaves data from the previous install) and installs foo from developer baz. If we don't create the app-specific dirs with foo.origin, then in this particular scenario, foo's data from the bar install is available to the baz install.