@takluyver ? @minrk ?

Do you have sublime keybindings?
I've seen it sometimes too, I think if I hit Ctrl-F while in edit mode. I've never actually wanted it, and I'd be happy if we disabled it - though I'm sure someone would be unhappy.
Due to focus/keybinding stuff, when I've seen it it doesn't work at all, so I doubt anyone would miss it (some might wish it actually worked, though).
Do you have sublime keybindings?
I don't think so, and yes it does not work.
I couldn't easily reproduce this. @Carreau do you still see it?
I can reproduce by enabling the Select CodeMirror Keymap nbextension and selecting Sublime keymap from the Edit menu.
Hack to disable it : rename the search folder to search.back in your python2.7/site-packages/notebook/static/components/codemirror/addon
or comment out
"codemirror/addon/search/searchcursor",
"codemirror/addon/search/search",
In [env]/share/jupyter/nbextensions/select_keymap/main.js
Most helpful comment
I can reproduce by enabling the
Select CodeMirror Keymapnbextension and selecting Sublime keymap from theEditmenu.Hack to disable it : rename the
searchfolder tosearch.backin yourpython2.7/site-packages/notebook/static/components/codemirror/addonor comment out
In
[env]/share/jupyter/nbextensions/select_keymap/main.js