Merge branch 't/9239c'

Author: Reinmar

core/selection.js

@@ -1297,6 +1297,12 @@
 			this.reset();
 
 			if ( restore ) {
+				// Saved selection may be outdated (e.g. anchored in offline nodes).
+				// Avoid getting broken by such.
+				var common = selectedElement || ranges[ 0 ].getCommonAncestor();
+				if ( !( common && common.getAscendant( 'body', 1 ) ) )
+					return;
+
 				if ( selectedElement )
 					this.selectElement( selectedElement );
 				else