fix(dropdown-select): 当异步获取 dataList 数据时, 初始化全选状态出错

[hjzheng]

No description provided.

[codecov-io]

Codecov Report

❗ No coverage uploaded for pull request base (dev@d3e5136). Click here to learn what that means.
The diff coverage is 100%.

@@          Coverage Diff           @@
##             dev     #429   +/-   ##
======================================
  Coverage       ?   54.37%           
======================================
  Files          ?      125           
  Lines          ?     5389           
  Branches       ?        0           
======================================
  Hits           ?     2930           
  Misses         ?     2459           
  Partials       ?        0

Impacted Files	Coverage Δ
...wn/dropdown-multiselect/DropdownMultiselectCtrl.js	62.85% <100%> (ø)
.../components/dropdown/dropdown-multiselect/index.js	100% <100%> (ø)

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