Merge branch 't/11104'

Author: Reinmar

CHANGES.md

@@ -5,6 +5,7 @@ CKEditor 4 Changelog
 
 Fixed Issues:
 
+* [#11104](http://dev.ckeditor.com/ticket/11104): [IE] Fixed: Various issues with scroll and selection focusing widgets.
 * [#11487](http://dev.ckeditor.com/ticket/11487): Moving mouse over [Enhanced Image](http://ckeditor.com/addon/image2) widget will no longer change value returned by [`Editor.checkDirty`](http://docs.ckeditor.com/#!/api/CKEDITOR.editor-method-checkDirty) method.
 * [#8673](http://dev.ckeditor.com/ticket/8673): Fixed: Webkit browsers - cannot select and remove Page Break (pagebreak).
 * [#11413](http://dev.ckeditor.com/ticket/11413): Fixed: Wrong execCommand behavior.

core/selection.js

@@ -253,7 +253,8 @@
 
 		editor.editable().append( hiddenEl );
 
-		var sel = editor.getSelection(),
+			// Always use real selection to avoid overriding locked one (http://dev.ckeditor.com/ticket/11104#comment:13).
+		var sel = editor.getSelection( 1 ),
 			range = editor.createRange(),
 			// Cancel selectionchange fired by selectRanges - prevent from firing selectionChange.
 			listener = sel.root.on( 'selectionchange', function( evt ) {