In the line content panel of chart edit mode, if you set the line style to none, it doesnt disable the transparency control, which doesnt happen in non-edit mode with the line content panel.
Build ID: 2639eadce4c9ccead9112a6893b5e9e2e0fefd78
TinderBox: Linux-rpm_deb-x86_64@70-TDF, Branch:master, Time: 2015-09-14_23:56:58
Locale: en-US (en_US.UTF-8)
Markus Mohrhard committed a patch related to this issue.
It has been pushed to "master":
disable a few more controls when no border is set, tdf#94291
It will be available in 5.1.0.
The patch should be included in the daily builds available at
http://dev-builds.libreoffice.org/daily/ in the next 24-48 hours. More
information about daily builds can be found at:
Affected users are encouraged to test the fix and report feedback.