Barend Gehrels f6c67daba6 [difference] fix cases where ii turns were not discarded, this
was a todo-item, it was not yet done for difference.

Including unit testcase using this.
2017-12-20 16:22:27 +01:00
..
2012-01-12 20:58:20 +00:00
2016-08-15 19:38:46 +03:00
2012-01-12 20:58:20 +00:00