- 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


git-svn-id: 6ac5796aeae0cef97fb47bcc287d4ce899c6fa6e@48873 7cbeb6ba-43b4-40fd-8cce-4c39aea84d33

jordemort/e17,jordemort/e17,jordemort/e17