Created attachment 94356 [details]
The file has line chart without any updown bars in it.
The original file has a line chart, this file when round-tripped on Libre Office, the round trip file shows updown bars in it, which is incorrect.
If there are no updown bars in the original file then they should not be present in the roundtrip file as well.
Reproducible, tested using Mac OSX 10.9 with LibreOffice Version: 188.8.131.52.alpha0+
Build ID: a7901132237f8bbd3ce42f0deda3fb7922230722
TinderBox: MacOSX-x86@49-TDF, Branch:master, Time: 2014-02-18_23:54:28
Should be fixed in master.