Fix python/c++ conversion for boost::optional<T>

Setters for types wrapped in boost::optional, such as item_t::note were
broken, e.g. setting a note on a transaction resulted in garbled data
that would cause Python to throw utf-8 errors when retrieving the note.

(But setters that accessed strings directly, e.g. "payee" on a transaction
worked fine.)

This change alters the from-python conversion for optional-wrapped
types based on the example at
https://stackoverflow.com/questions/36485840/wrap-boostoptional-using-boostpython
and a test case to verify the behavior.

0 files changed, 0 insertions, 0 deletions