- allow tab when there is no state to get back from empty selector  - fix segv window could have been deleted
- allow tab when there is no state to get back from empty selector 
- fix segv window could have been deleted


SVN revision: 48873

rvandegrift/e,tasn/enlightenment,tizenorg/platform.upstream.enlightenment,rvandegrift/e,tasn/enlightenment,FlorentRevest/Enlightenment,tizenorg/platform.upstream.enlightenment,FlorentRevest/Enlightenment,tizenorg/platform.upstream.enlightenment,tasn/enlightenment,rvandegrift/e,FlorentRevest/Enlightenment