Replication Tasks fail on SCALE

Error occurs when trying to replicate dataset to either a local dataset or to a dataset over SSH.

Error does not occur with TrueNAS-21.02-MASTER-20210203-012918. I believe the replication tasks stop working with the updates around 5 Feb 2021.

I've seen `KeyError` return with 'mountpoint', 'sharenfs', and 'sharesmb'. The following is an example of the error log.

LOCAL Replication Task

[2021/02/12 03:34:07] ERROR    [replication_task__task_1] [zettarepl.replication.run] For task 'task_1' unhandled replication error KeyError('mountpoint')
Traceback (most recent call last):
  File "/usr/lib/python3/dist-packages/zettarepl/replication/run.py", line 158, in run_replication_tasks
    run_replication_task_part(replication_task, source_dataset, src_context, dst_context, observer)
  File "/usr/lib/python3/dist-packages/zettarepl/replication/run.py", line 229, in run_replication_task_part
    step_templates = calculate_replication_step_templates(replication_task, source_dataset,
  File "/usr/lib/python3/dist-packages/zettarepl/replication/run.py", line 342, in calculate_replication_step_templates
    for property, (value, source) in get_properties(
  File "/usr/lib/python3/dist-packages/zettarepl/transport/zfscli/__init__.py", line 103, in get_properties
    return get_properties_recursive(shell, [dataset], properties, include_source)[dataset]
  File "/usr/lib/python3/dist-packages/zettarepl/transport/zfscli/__init__.py", line 97, in get_properties_recursive
    result[name][property] = result[property], source
KeyError: 'mountpoint'

SSH+NETCAT Replication Task

[2021/02/12 03:34:19] INFO     [Thread-6] [zettarepl.paramiko.replication_task__task_2] Connected (version 2.0, client OpenSSH_8.4p1)
[2021/02/12 03:34:19] INFO     [Thread-6] [zettarepl.paramiko.replication_task__task_2] Authentication (publickey) successful!
[2021/02/12 03:34:19] ERROR    [replication_task__task_2] [zettarepl.replication.run] For task 'task_2' unhandled replication error KeyError('mountpoint')
Traceback (most recent call last):
  File "/usr/lib/python3/dist-packages/zettarepl/replication/run.py", line 158, in run_replication_tasks
    run_replication_task_part(replication_task, source_dataset, src_context, dst_context, observer)
  File "/usr/lib/python3/dist-packages/zettarepl/replication/run.py", line 229, in run_replication_task_part
    step_templates = calculate_replication_step_templates(replication_task, source_dataset,
  File "/usr/lib/python3/dist-packages/zettarepl/replication/run.py", line 342, in calculate_replication_step_templates
    for property, (value, source) in get_properties(
  File "/usr/lib/python3/dist-packages/zettarepl/transport/zfscli/__init__.py", line 103, in get_properties
    return get_properties_recursive(shell, [dataset], properties, include_source)[dataset]
  File "/usr/lib/python3/dist-packages/zettarepl/transport/zfscli/__init__.py", line 97, in get_properties_recursive
    result[name][property] = result[property], source
KeyError: 'mountpoint'