K 10
svn:author
V 3
mav
K 8
svn:date
V 27
2016-08-31T11:55:31.975889Z
K 7
svn:log
V 302
Fix kernel panic when inheriting properties without default.

There are two writable hidden properties "iscsioptions" and "stmf_sbd_lu",
that have no default string value.  Attempt to unset them or replicate
caused kernel panic.  This simple bandaid seems fixes the problem nicely.

MFC after:	2 weeks

END