message: fix(FilterControl): fix  filter creation bugs when Input filter control value changes to empty
diff: @@ -210,7 +210,8 @@ export class FilterControl extends React.Component<IFilterControlProps, {}> {
  private debouncedOnChange = null
  private onInputChange = (e) => {
  const { filter } = this.props
  - const val = e.target.value
  + let val = e.target.value
  + if (val === '') { val = undefined }
  this.debouncedOnChange(filter, val)
  }
  