[GH #1853] Dropdown is hidden when it is not in viewport

Tags: #<Tag:0x00007efc708d1eb8> #<Tag:0x00007efc708d1d78>

If the cell type is Dropdown or Handsontable, the dropdown component disappears when it is scrolled outside of the viewport and will not appear again.

Steps to reproduce:

  1. Open any dropdown cell
  2. Scroll down until the dropdown is not shown
  3. Scroll up again and the dropdown is not shown (cell is still in edit mode)

Demo:

Hi @hjeong1200

Thank you for contacting us. This is issue is most likely connected to the other one related to the dropdown visibility bug. We have it reported internally, so I will update you once we investigate it further and estimate.