Stop leaking and re-inserting Split slots

git-svn-id: svn+ssh://svn.gnucash.org/repo/gnucash/trunk@23450 57a11ea4-9604-0410-9ed3-97b8803252fd
test_gnc_setlocale: Print diagnostic message, replacing comment.

git-svn-id: svn+ssh://svn.gnucash.org/repo/gnucash/trunk@23451 57a11ea4-9604-0410-9ed3-97b8803252fd