changing keyboard layout on Ctrl+Shift

view full story

http://forums.fedoraforum.org – Hello guys, I've just installed a new Fedora 20 with kde. I have configured keyboard layout shortcut to a Ctrl + Shift. But if I use another shortcut in any application (for example Ctrl+Shift+K in KWrite) it changes my layout to. It seems that changing of layout relates to pressing but not to releasing Ctrl+Shift. Please advise how to fix this. (HowTos)