Invalidate the HifContext if the rpmdb is changed
Invalidate the HifContext if the rpmdb is changed

Conan-Kudo/libhif,rpm-software-management/libhif,juhp/libhif,Conan-Kudo/libhif,kalev/libhif,rpm-software-management/libdnf,rpm-software-management/libhif,rpm-software-management/libhif,rpm-software-management/libdnf,hughsie/libhif,hughsie/libhif,cgwalters/libhif,Conan-Kudo/libhif,kalev/libhif,juhp/libhif,Conan-Kudo/libhif,cgwalters/libhif,edynox/libdnf,rpm-software-management/libhif,edynox/libdnf,hughsie/libhif,edynox/libdnf,rpm-software-management/libdnf,hughsie/libhif,edynox/libdnf,cgwalters/libhif,cgwalters/libhif,rpm-software-management/libdnf