Can't get it to work with ZFS mounts

[alexanderharm]

I'm running Nextcloud inside a Docker container on a ZFS-only host. If I try to watch for changes using occ files_external:notify -v 2 I simply receive the error message Mount of type "Lokal" does not support active update notifications. This is weird, because I had it running using a BTRFS volume with exactly the same permissions.

Inside the container I can run inotifywait -mr /data/example on the mapped files just fine and get notified of any occuring changes.

Any ideas or pointers?