Script demonstrating the issue

user-prop.sh (text/plain), 422 bytes, created by Remy Blank on 2015-12-14 19:29:15 UTC

#!/bin/bash
set -ev
dd if=/dev/zero of=test-pool.vol bs=1M count=64
zpool create -R $PWD test-pool $PWD/test-pool.vol
cd test-pool
zfs create test-pool/test
zfs create test-pool/test/sub
zfs set user:prop=parent test-pool/test
zfs get user:prop test-pool/test
zfs get user:prop test-pool/test/sub
zfs get -s inherited user:prop test-pool/test/sub
zfs get -s local user:prop test-pool/test/sub
cd ..
zpool export test-pool