I have a document /a and subdocument /a/1. When I move /a/1 to /a/2 then the parent doc "a" still has the old reference to /a/1 . There may be lots of other links to the old URL, but the parent doc is really annoying when it has an old reference.

So when doing a move, I guess we should also update the parent doc? This is a bit annoying to create extra mutations in the network (which will show up in the feeds). But I think its the only sane option? And maybe the user should be prompted to update all the links?