When set, the share or project cannot be destroyed. This includes destroying a share through
dependent clones, destroying a share within a project, or destroying a replication package. However,
it does not affect shares destroyed through replication updates. If a share is destroyed on an ZFSSA
that is the source for replication, the corresponding share on the target will be destroyed, even if
this property is set.
To destroy the share, the property must first be explicitly turned off as a separate step.
This property is off by default.