avoid pushing the same ref more than once (fix #4253)

8 years ago · 06f41ad9fe
1 changed files with 1 additions and 1 deletions
--- a/src/core/vdom/modules/ref.js
+++ b/src/core/vdom/modules/ref.js
@ -32,7 +32,7 @@ export function registerRef (vnode: VNodeWithData, isRemoval: ?boolean) {
    }
  } else {
    if (vnode.data.refInFor) {
-      if (Array.isArray(refs[key])) {
+      if (Array.isArray(refs[key]) && refs[key].indexOf(ref) < 0) {
        refs[key].push(ref)
      } else {
        refs[key] = [ref]