Clicking menu items executes corresponding command 3 times
This is most noticeable in the setup_funname menu since you can view the results from the cvar_cat instantly.
Tested in various menus(setup_funname, play, etc) with different commands(cvar_cat, invalid command, etc).
I am using a Logitech MX300 on the USB port, using the 'IMPS/2' mouse protocol in XOrg(Gentoo).
I was unable to replicate this issue with a Win32 build of alpha14 on another PC.