sd-bus: always go through sd_bus_unref() to free messages
    
    Don't try to be smart, don't bypass the ref counting logic if there's no
    real reason to.
    
    This matters if we want to tweak the ref counting logic later.
    
    (cherry picked from commit b41812d1e308de03c879cfca490105216d528c4b)
    Related: CVE-2020-1712
    
    patch_name: 0312-sd-bus-always-go-through-sd_bus_unref-to-free-messag.patch
    present_in_specfile: true
    location_in_specfile: 312
    squash_commits: true