fix: ensure only nromalize a scoped slot when it is present

yyx990803 · yyx990803 · commit 5fb23d4e2971 · 2019-01-09T22:47:11.000-05:00
diff --git a/src/core/vdom/helpers/normalize-scoped-slots.js b/src/core/vdom/helpers/normalize-scoped-slots.js
@@ -12,7 +12,9 @@ export function normalizeScopedSlots (
   } else {
     res = {}
     for (const key in slots) {
-      res[key] = normalizeScopedSlot(slots[key])
+      if (slots[key]) {
+        res[key] = normalizeScopedSlot(slots[key])
+      }
     }
   }
   // expose normal slots on scopedSlots

Original file line number	Diff line number	Diff line change
`@@ -12,7 +12,9 @@ export function normalizeScopedSlots (`
`12`	`12`	`} else {`
`13`	`13`	`res = {}`
`14`	`14`	`for (const key in slots) {`
`15`		`- res[key] = normalizeScopedSlot(slots[key])`
	`15`	`+ if (slots[key]) {`
	`16`	`+ res[key] = normalizeScopedSlot(slots[key])`
	`17`	`+ }`
`16`	`18`	`}`
`17`	`19`	`}`
`18`	`20`	`// expose normal slots on scopedSlots`