#1434: Target must be immediate child of sortable

Sortable.js

@@ -501,7 +501,7 @@
 			scrollSensitivity: 30,
 			scrollSpeed: 10,
 			bubbleScroll: true,
-			draggable: /[uo]l/i.test(el.nodeName) ? 'li' : '>*',
+			draggable: /[uo]l/i.test(el.nodeName) ? '>li' : '>*',
 			swapThreshold: 1, // percentage; 0 <= x <= 1
 			invertSwap: false, // invert always
 			invertedSwapThreshold: null, // will be set to same as swapThreshold if default
@@ -1210,7 +1210,7 @@
 						return completed();
 					}
 				}
-				else if (target && target !== dragEl && (target.parentNode[expando] !== void 0) && target !== el) {
+				else if (target && target !== dragEl && target.parentNode === el) {
 					var direction = 0,
 						targetBeforeFirstSwap,
 						aligned = target.sortableMouseAligned,
@@ -1691,7 +1691,14 @@
 			ctx = ctx || document;
 
 			do {
-				if ((selector === '>*' && el.parentNode === ctx) || _matches(el, selector) || (includeCTX && el === ctx)) {
+				if (
+					selector != null &&
+					(
+						selector[0] === '>' && el.parentNode === ctx && _matches(el, selector.substring(1)) ||
+						_matches(el, selector) ||
+						(includeCTX && el === ctx)
+					)
+				) {
 					return el;
 				}