Propagate FUSE mount from container to host

Thanks for the reply!

I just checked and it seems that even if I manually mount some other filesystem - I tried tmpfs - I still get no propagation. So maybe the problem is not related to fuse, and its just me doing something wrong?
Here’s what I did:

host# mkdir /test
host# lxc config device add container test disk \
        path=/test \
        source=/test \
        propagation=rshared \
        recursive=true
container# mkdir /test/mnt
container# mount -t tmpfs tmpfs /test/mnt
container# touch /test/mnt/file
host# ls -l /test/mnt
total 0

I also tried making /test a bind mount using mount --bind /test /test on the host before adding the device, but that didn’t make a difference.

What am I missing?