clamp does not work properly for bar chart with align==='end' and anchor==='end'

[tearfur]

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config = {
  type: 'bar',
  /* ... */
  options: {
    /* ... */
    datalabels: {
      clamp: true,
      anchor: 'end',
      align: 'end'
    }
  }
}

If the bar is as long as the y-axis, then the data label won't show.