Merged update-package-profile-repo [r=free.ekanayaka,therve] [f=953906].
Make sure package profiles get added to the facade cache, before trying
to install them.
Before, if the change-packages message contained binaries, they would be
added to the repo on disk, but the facade didn't reread the Packages
file, so when trying to install the binary it couldn't find it, thus
needing to wait for the reporter to update the package information.