How to reproduce: 1) Either try this on OS X, or you need an installed Zapfino.ttf. (Sorry, I'm not aware of a free font that triggers this issue ATM.) 2) Open Writer. 3) Type "llll". When you type the 4th "l", it's only painted partially, see the attached screenshot. A workaround is to click on the header area, which triggers a repaint, and then it gets pained properly.
Created attachment 98695 [details] How it looks like currently.
Created attachment 98696 [details] How it should look like.
Miklos Vajna committed a patch related to this issue. It has been pushed to "master": http://cgit.freedesktop.org/libreoffice/core/commit/?id=0fd4cc8ba7335e33515413f54b19455b376d5db9 fdo#78444 sw: avoid incorrect right shrinking of repaint rectangle 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: http://wiki.documentfoundation.org/Testing_Daily_Builds Affected users are encouraged to test the fix and report feedback.