Revert "remove no longer necessary code"

yyx990803 · yyx990803 · commit fcc98d52e21b · 2016-12-28T00:44:17.000-05:00
This reverts commit 7f25f73.
diff --git a/src/platforms/web/runtime/components/transition.js b/src/platforms/web/runtime/components/transition.js
@@ -133,6 +133,12 @@ export default {
     const oldRawChild = this._vnode
     const oldChild: any = getRealChild(oldRawChild)
 
+    // mark v-show
+    // so that the transition module can hand over the control to the directive
+    if (child.data.directives && child.data.directives.some(d => d.name === 'show')) {
+      child.data.show = true
+    }
+
     if (oldChild && oldChild.data && !isSameChild(child, oldChild)) {
       // replace old child transition data with fresh one
       // important for dynamic transitions!
