New installation of Alfresco Community 5.1.0.
When editing a Discussion, the Cut and Copy commands from the drop down menu aren't working. Control+C & Control+X keyboard commands work, but not when you click on "Copy" or "Cut". Strangely, the "Paste" command does work (as does Control+P).
Not a huge problem for me, as I always use keyboard commands, but some users have complained.