message: [bugfix] Field: add hack for iOS 12 scroll position
diff: -import { use, isObj, isDef } from '../utils';
  +import { use, isObj, isDef, isIOS } from '../utils';
  import Icon from '../icon';
  import Cell from '../cell';
  import { cellProps } from '../cell/shared';
  @@ -102,6 +102,13 @@ export default sfc({
  onBlur(event) {
  this.focused = false;
  this.$emit('blur', event);
  +
  + // Hack for iOS12 page scroll
  + // https://developers.weixin.qq.com/community/develop/doc/00044ae90742f8c82fb78fcae56800
  + /* istanbul ignore next */
  + if (isIOS()) {
  + window.scrollTo(0, window.pageYOffset);
  + }
  },
  onClickLeftIcon() {
  