Escape cancels textarea changes without warning

[Grant Likely]

When editing the whiteboard on a blueprint page, hitting the 'escape' key will cancel the edit and erase all of the changes without warning. This is particularly frustrating for us vi users with escape-key-muscle-memory embedded in our fingertips, and after drafting a long detailed description into the whiteboard text area. I've hit this problem several times and I've now resorted to editing whiteboard text in a separate text editor and cut&pasting it into the whiteboard when finished.

The escape key should not cancel edits without warning. Ideally I would have the escape key have no effect, but I could also live with it popping up a warning dialog box.