Dropdown with VirtualScroll not rendering items.

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[x] bug report
[ ] feature request
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The problem is present here in the Primereact's Demo.
https://www.primefaces.org/primereact/dropdown/

Current behavior

• Use Dropdown with VirtualScroller
• Select the second item ( Item # 1 )
• Open the Dropdown once again
• Scroll to the top
• The first item ( Item #0 ) is missing.
  So the issue is that when you select some of the first items in a Dropdown with Virtual Scrolling enabled, the items above the selected one are not rendered until you scroll downwards and the go back up.

Expected behavior
All items should be visible right away.

• React version:
  Demo Site.

• PrimeReact version:
  7.1.0

• Browser: [Chrome]