Created attachment 85729 [details]
screenshot (Fedora 19)
Steps to reproduce:
1) Set locale to some RTL language (like Arabic or Hebrew) (through Tools->Options...->Language settings->Languages->locale setting)
2) Open Writer and add comment (Insert->Comment)
3) As you can see the comment appears on the left side of the page, while the toggle button (which was added due to bug 38246) appears on the right side of the ruler, not above the comments.
Tested with LO 18.104.22.168 under both Ubuntu 13.10 & Fedora 19.
Created attachment 85871 [details]
screenshot with RTL paragraph (Fedora 19)
Also please note that when paragraph's direction is RTL, you don't see the tab
icon on the top ruler (probably because comments toggle button covering it, or pushing it too much to right). So it's missing functionality, not just cosmetic issue.
Bug confirmed (22.214.171.124 on Debian 64bit). The tab icon is available if you zoom out a little (meaning it's there, but covered as you thought).
Abdulaziz A Alayed committed a patch related to this issue.
It has been pushed to "master":
fdo#69280 fixing comments toggle button position when local
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.
Fix verified on a build from master.