This bug was created by this comment: https://github.com/kiegroup/kie-wb-common/pull/3000#issuecomment-553442743

Reported by Jozef:
Once completions are shown, then pressing Escape hides them however cancel also edit mode of the cell, I am not sure what customers will think about this.

Check with UX the expected behaviour, and implement the expected behaviour for the Escape key in the described case

The severity of the issue is higher if we follow this steps:

• Put some value into cell, confirm it == finish edit mode
• Edit the same cell, type new expression
• Very probably autocompletions will be shown
• However imagine you do not want to use any hint, so you press Escape
• Now the completions are hidden, however also edit mode was canceled and typed value was not stored