Comment 23 for bug 1100190

Tomaž Vajngerl committed a patch related to this issue.
It has been pushed to "master":

http://cgit.freedesktop.org/libreoffice/core/commit/?id=c3a4dacfa0aae3cf40aa7b123672c6bc197efe0f

tdf#59424 unset open flag O_EXCL if O_CREAT is not set

It will be available in 6.0.0.

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:
http://wiki.documentfoundation.org/Testing_Daily_Builds

Affected users are encouraged to test the fix and report feedback.