Allow matching null values
Allow matching null values

Change-Id: Ibedccfb1940ba371ad66dd0e3cd7dc827c5a61e8

apmasell/flabbergast,apmasell/flabbergast,flabbergast-config/flabbergast,apmasell/flabbergast,flabbergast-config/flabbergast,apmasell/flabbergast,flabbergast-config/flabbergast,apmasell/flabbergast,flabbergast-config/flabbergast,flabbergast-config/flabbergast,apmasell/flabbergast