id	summary	reporter	owner	description	type	status	priority	milestone	component	version	resolution	keywords	cc
13465	Error is thrown and widget is lost when DnD if it's the only content of editor	Piotrek Koszuliński		"1. Open the placeholder sample.
2. Clear all contents.
3. Insert one placeholder.
4. Ty to DnD it.

An error is thrown and it disappears.

Reproduced on Chrome and FF."	Bug	new	Normal	CKEditor 4.5.2	General