Rowspan affects tbody border color

Created by: arthurshlain

Second tbody has wrong border-color on cells having rowspan attribute.

HTML

<table class="table table-sm">
  <thead>
    <tr>
      <th></th>
      <th class="text-end">
        <span class="fw-bold">Длина</span>
        <br>
        <span class="fw-normal">мм</span>
      </th>
      <th class="text-end">
        <span class="fw-bold">Толщина</span>
        <br>
        <span class="fw-normal">мм</span>
      </th>
      <th class="text-end">
        <span class="fw-bold">Высота</span>
        <br>
        <span class="fw-normal">мм</span>
      </th>
    </tr>
  </thead>
  <tbody class="">
    <tr>
      <td>ПСТ 60.9.2,5-Т</td>
      <td class="text-end" rowspan="3">5890</td>
      <td class="text-end" rowspan="3">250</td>
      <td class="text-end">880</td>
    </tr>
    <tr>
      <td>ПСТ 60.12.2,5-Т</td>
      <!-- . -->
      <!-- . -->
      <td class="text-end">1180</td>
    </tr>
    <tr>
      <td>ПСТ 60.15.2,5-Т</td>
      <!-- . -->
      <!-- . -->
      <td class="text-end">1480</td>
    </tr>
  </tbody>
  <tbody>
    <tr>
      <td>ПСТ 60.9.3-Т</td>
      <td class="text-end" rowspan="3">5890</td>
      <td class="text-end" rowspan="3">300</td>
      <td class="text-end">880</td>
    </tr>
    <tr>
      <td>ПСТ 60.12.3,5-Т</td>
      <!-- . -->
      <!-- . -->
      <td class="text-end">1180</td>
    </tr>
    <tr>
      <td>ПСТ 60.15.3,5-Т</td>
      <!-- . -->
      <!-- . -->
      <td class="text-end">1480</td>
    </tr>
  </tbody>
</table>