Cannot use the mountpoint of subvolumes as a subvolume

[EnderShadow]

trafficstars

In the root subvolume there are three subvolumes: @, @home, and @snapshots. @ is mounted as /, @home is mounted as /home, and @snapshots is mounted as both /.snapshots and /home/.snapshots.

I would like to be able to set up the btrbk configuration like this

volume ssh://planeptune/
  subvolume .
    target /mnt/backups/remote/planeptune/root
  subvolume home
    target /mnt/backups/remote/planeptune/home

But if I do I get this warning

WARNING: Skipping subvolume "planeptune:/./home": Not a child subvolume of: planeptune:/

This forces me to use the following in my configuration which is less than optimal since it forces me to define multiple volumes when really one should suffice

volume ssh://planeptune/
  subvolume .
    target /mnt/backups/remote/planeptune/root

volume ssh://planeptune/home
  subvolume .
    target /mnt/backups/remote/planeptune/home

[digint]

see FAQ.

This is asked a lot, and btrbk disallows it for the reasons described in the FAQ. Nevertheless there are some use cases where this could make sense, I'm thinking of changing this behavior.