id	summary	reporter	owner	description	type	status	priority	milestone	component	version	resolution	keywords	cc
11677	CTRL+Z/Y (undo/redo) blocked in source mode	Piotrek Koszuliński	Piotrek Koszuliński	"Unfortunately fix for #11126 touched also source mode, so undoing and redoing is completely impossible.

We need to find a way to block those keystrokes only in wysiwyg mode. I'm not sure how can we achieve this in a clean way, because blockedKeystroke is mode-blind and undo/redo commands are not even executed at the bottom/top of the stack, because they are disabled then.

Our API does not leave us much choice (if any), so new option may need to be proposed."	Bug	closed	Normal	CKEditor 4.3.5	General	4.3.2	fixed