$ change-override -c main -S juju-mongodb -y
Override component to main
juju-mongodb 2.4.10-0ubuntu4 in wily: universe/database -> main
juju-mongodb 2.4.10-0ubuntu4 in wily amd64: universe/database/optional/100% -> main
juju-mongodb 2.4.10-0ubuntu4 in wily arm64: universe/database/optional/100% -> main
juju-mongodb 2.4.10-0ubuntu4 in wily armhf: universe/database/optional/100% -> main
juju-mongodb 2.4.10-0ubuntu4 in wily i386: universe/database/optional/100% -> main
juju-mongodb 2.4.10-0ubuntu4 in wily ppc64el: universe/database/optional/100% -> main
6 publications overridden.
$ change-override -c main -S juju-mongodb -y database/ optional/ 100% -> main database/ optional/ 100% -> main database/ optional/ 100% -> main database/ optional/ 100% -> main database/ optional/ 100% -> main
Override component to main
juju-mongodb 2.4.10-0ubuntu4 in wily: universe/database -> main
juju-mongodb 2.4.10-0ubuntu4 in wily amd64: universe/
juju-mongodb 2.4.10-0ubuntu4 in wily arm64: universe/
juju-mongodb 2.4.10-0ubuntu4 in wily armhf: universe/
juju-mongodb 2.4.10-0ubuntu4 in wily i386: universe/
juju-mongodb 2.4.10-0ubuntu4 in wily ppc64el: universe/
6 publications overridden.