Code review comment for lp://staging/~mhr3/unity-lens-music/no-results-hint

This is all backend side, so I guess an automatest when you make a search with "oihoihigiuguigigg", and ensure that you receive over dbus the "no-results-hint" is a first step.
I appreciate your different points, but I'm seeing more and more branches without any test going in, and telling "sure, but we can test x, y, z or w and we don't want just to pick one, so we do none of them" doesn't seem the way to go IMHO.