add test
v0.08

 [BUG FIXES]
 - 'prepare_serializer_for_format' was clobbering the default serializer.
   (RT#93478, reported by Pierre Vigier, fix by Yanick Champoux)
 - serializer not detected in time for first deserialization.  (RT#78437,
   reported by Andrew Solomon, fix by Yanick Champoux)

 [STATISTICS]
 - code churn: 12 files changed, 172 insertions(+), 111 deletions(-)