The yellow row is identical to the second green row, so it's more preferred to treat them as unchanged, and the diff should be only an insertion of the first green row.
Version: 1.17.x
Severity: enhancement
URL: http://zh.wikipedia.org/w/index.php?title=Wikipedia:%E4%BA%92%E5%8A%A9%E5%AE%A2%E6%A0%88/%E6%B6%88%E6%81%AF&diff=prev&oldid=13897125