insertinstalledpackage 'foo' 'i386' '1'
insertpackage 'unstable' 'foo' 'amd64,i386' '1'
-insertinstalledpackage 'foo2' 'i386' '1'
-insertpackage 'unstable' 'foo2' 'i386' '1'
+insertpackage 'unstable,installed' 'foo2' 'i386' '1'
insertinstalledpackage 'foo3' 'amd64' '1'
insertpackage 'unstable' 'foo3' 'amd64,i386' '1'