Comment 3 for bug 1662815

The goal of preventing such conflicts is two-fold: of course we can't allow two things to coexist with the same command name because it's impossible to have both first in the path at the same time, thus one of them will overlap the other. But also, it's a matter of comprehension - having a "glance" snap which is supposed to work together with a different snap which has a "glance" alias for its own command is unnecessarily confusing. As a user, if I installed both of these snaps, it'd be extremely surprising to find out that "glance" was in fact in the "wrong" snap.