id	summary	reporter	owner	description	type	status	priority	milestone	component	version	resolution	keywords	cc
17052	Selection started from nested table causes an error in a browser while scrolling down	Ktomporowski	Tomasz Jakut	"== Steps to reproduce ==

1. Create a 5x5 table (editor should become scrollable).
2. In the first cell make 2x2 nested table with width set to 15.
3. Fill every cell with letter ""s"".
4. Start selection from nested table, then move it out of the table and drag it to scroll down the editor.

== Expected result ==
Selection should stay in a nested table without returning any errors in console.

== Actual result ==
There is an error in a console.
https://gist.github.com/Mgsy/b5c95910313a7cb70e87beae921ac74f

== Other details (browser, OS, CKEditor version, installed plugins) ==
Windows 10, tested on Chrome, Edge, IE11, Firefox.

"	Bug	closed	Must have (possibly next milestone)	CKEditor 4.7.1	General	4.7.0	fixed