ipython/ipython — pull request #4183 by tkanmae (2013-09-07 22:15:38+00:00)
Title: ESC should be handled by CM if tooltip is not on

This PR fixes an issue on a key-press event with ESC in code cells, allowing the event to propagate to CM if tooltip is not on.

Currently, key-pressing ESC in a code cell simply removes tooltip, and the event is ignored by CM. I can not get out of insert mode when I am using Vim key binding.