As a matter of personal preference I ususally set a "don't install" lock on
AppArmor in my installations. But with sr#687694 a hard runtime dependency on
apparmor-abstractions was added to the ghostscript package, which in turn pulls
other AppArmor packages and makes it impossible to have an AppArmor-free system
with ghostscript.

As AppArmor is optional, I don't think packages like ghostscript should have
such a hard dependency on it. Instead it should either be a weak dependency or
no dependency at all. If a hard dependency is needed for some reason the
AppArmor stuff for GS should be in an optional subpackage to retain the
possibility to install GS without AppArmor.