I don't any any issues with LibrePffice 5.0.x on Debian testing (tried
CTRL+B, CTRL+C and CTRL+V while in Hebrew layout).
Kaplan
I install on ubuntu 14.04 libreoffice5.1 in parallel following:
https://wiki.documentfoundation.org/Installing_in_parallel/Linux
I found that there are layout problems in the Hebrew PDF file in the
debian-refcard package.
To fix the problems, I am building a virtual machine (using VirtualBox)
for a Debian Stretch (Unstable) installation.
I tried to install using debian-stretch-DI-alpha5-amd64-netinst.iso
but in middle, the