I'd be curious if updating to 1.3.5 first, then moving to 1.4 has any impact on this issue. I only say this because I have two separate routers I just upgraded from 1.3.5 that both have the following (after upgrade) which looks to have been correctly migrated:
route6 ::/0 {
next-hop 2001:db8:3a01:a5::1 {
}
}
route6 2001:db8:3a01:2::/64 {
blackhole {
}
}
route6 2001:db8:3a01:c5::/64 {
interface bond1.1258 {
}
}
route6 2001:db8:3a01:fd::/64 {
interface bond1.1258 {
}
}
route6 fc00::/7 {
blackhole {
}
}
route6 2001:db8:8011:239d::/64 {
interface bond0.925 {
}
}