fix(transition): transition-group should only listen for first-level children's end events (vuejs#8374)

verstoff · yyx990803 · commit 504d5da7eff1 · 2018-10-24T13:23:12.000-04:00
diff --git a/src/platforms/web/runtime/components/transition-group.js b/src/platforms/web/runtime/components/transition-group.js
@@ -116,6 +116,9 @@ export default {
         addTransitionClass(el, moveClass)
         s.transform = s.WebkitTransform = s.transitionDuration = ''
         el.addEventListener(transitionEndEvent, el._moveCb = function cb (e) {
+          if (e && e.target !== el) {
+            return
+          }
           if (!e || /transform$/.test(e.propertyName)) {
             el.removeEventListener(transitionEndEvent, cb)
             el._moveCb = null
