fix(v-model): should ignore compiled v-model listeners in attr fallth…

…rough

fix #1510

packages/runtime-core/src/componentProps.ts

@@ -190,19 +190,20 @@ export function updateProps(
  for (const key in rawCurrentProps) {
  if (
  !rawProps ||
- (
- // for camelCase
- !hasOwn(rawProps, key) &&
+ // for camelCase
+ (!hasOwn(rawProps, key) &&
  // it's possible the original props was passed in as kebab-case
  // and converted to camelCase (#955)
  ((kebabKey = hyphenate(key)) === key || !hasOwn(rawProps, kebabKey)))
  ) {
  if (options) {
- if (rawPrevProps && (
+ if (
+ rawPrevProps &&
  // for camelCase
- rawPrevProps[key] !== undefined ||
- // for kebab-case
- rawPrevProps[kebabKey!] !== undefined)) {
+ (rawPrevProps[key] !== undefined ||
+ // for kebab-case
+ rawPrevProps[kebabKey!] !== undefined)
+ ) {
  props[key] = resolvePropValue(
  options,
  rawProps || EMPTY_OBJ,
@@ -255,7 +256,11 @@ function setFullProps(
  let camelKey
  if (options && hasOwn(options, (camelKey = camelize(key)))) {
  props[camelKey] = value
- } else if (!emits || !isEmitListener(emits, key)) {
+ } else if (
+ (!emits || !isEmitListener(emits, key)) &&
+ // ignore v-model listeners
+ !key.startsWith(`onUpdate:`)
+ ) {
  // Any non-declared (either as a prop or an emitted event) props are put
  // into a separate `attrs` object for spreading. Make sure to preserve
  // original key casing