fix(runtime-core): should not cast prop value if prop did not change

fix #999
2020-04-20 14:16:25 -04:00
parent 36d77f9a9e
commit 171cfa404f
3 changed files with 41 additions and 12 deletions
--- a/packages/runtime-core/src/renderer.ts
+++ b/packages/runtime-core/src/renderer.ts
@@ -1246,9 +1246,10 @@ function baseCreateRenderer(
    optimized: boolean
  ) => {
    nextVNode.component = instance
+    const prevProps = instance.vnode.props
    instance.vnode = nextVNode
    instance.next = null
-    updateProps(instance, nextVNode.props, optimized)
+    updateProps(instance, nextVNode.props, prevProps, optimized)
    updateSlots(instance, nextVNode.children)
  }