gnucash master: Fix broken python test, adding new C unit test to cover the break.

[John Ralls]

Updated	 via  https://github.com/Gnucash/gnucash/commit/50787fc3 (commit)
	from  https://github.com/Gnucash/gnucash/commit/bdf5cb9b (commit)



commit 50787fc333a37416bd5c3bebe60667e06ef51b34
Author: John Ralls <jralls at ceridwen.us>
Date:   Sun Jul 5 15:55:49 2015 -0700

    Fix broken python test, adding new C unit test to cover the break.



Summary of changes:
 src/engine/Transaction.c              |  2 +-
 src/engine/test/utest-Transaction.cpp | 17 +++++++++++++++--
 2 files changed, 16 insertions(+), 3 deletions(-)